Audio volume control applet disappeared from panel Mate 1.24

Hello there,
Looking in forums, this is an old issue but I can’t find fix with Opensuse
So, the mate-volume-control-applet.desktop, with the loudspeaker disappeared. I can’t say if was just after the upgrade to 15.2 or later.

I can’t find it in the “Startup Applications Preferences” nor in /etc/xdg/autostart/

sudo zypper se --installed-only | grep mate-
i+ | libmate-desktop-2-17                     | Library with common API for various MATE modules                                                        | package
i+ | libmate-menu2                            | MATE Desktop Menu                                                                                       | package
i+ | libmate-panel-applet-4-1                 | MATE Panel Applet Library -- matecomponent-based library                                                | package
i+ | libmate-slab0                            | MATE Desktop libslab port                                                                               | package
i+ | libmate-window-settings1                 | Utility library for getting window manager settings                                                     | package
i+ | mate-applet-indicator                    | Information from applications consistently on the panel                                                 | package
i+ | mate-applet-indicator-lang               | Translations for package mate-indicator-applet                                                          | package
i+ | mate-applet-softupd                      | MATE panel applet for software update notifications                                                     | package
i+ | mate-applet-softupd-lang                 | Translations for package mate-applet-softupd                                                            | package
i+ | mate-applets                             | A set of applets for the MATE Desktop                                                                   | package
i+ | mate-applets-lang                        | Translations for package mate-applets                                                                   | package
i+ | mate-backgrounds                         | A set of backgrounds packaged with the MATE desktop                                                     | package
i+ | mate-backgrounds-lang                    | Translations for package mate-backgrounds                                                               | package
i+ | mate-control-center                      | MATE Desktop control center                                                                             | package
i+ | mate-control-center-branding-openSUSE    | openSUSE Branding of mate-control-center                                                                | package
i+ | mate-control-center-lang                 | Translations for package mate-control-center                                                            | package
i+ | mate-desktop-gschemas                    | MATE Desktop GSchemas                                                                                   | package
i+ | mate-desktop-gschemas-branding-openSUSE  | openSUSE Branding of mate-desktop                                                                       | package
i+ | mate-dictionary                          | MATE dictionary                                                                                         | package
i+ | mate-disk-usage-analyzer                 | MATE disk usage analyser                                                                                | package
i+ | mate-icon-theme                          | MATE icon theme                                                                                         | package
i+ | mate-icon-theme-faenza                   | MATE Desktop Faenza compilation theme                                                                   | package
i+ | mate-media                               | MATE Desktop multimedia stack                                                                           | package
i+ | mate-media-lang                          | Translations for package mate-media                                                                     | package
i+ | mate-menu                                | Advanced MATE menu                                                                                      | package
i+ | mate-menu-lang                           | Translations for package mate-menu                                                                      | package
i+ | mate-menus                               | MATE Desktop Menu                                                                                       | package
i+ | mate-menus-branding-openSUSE             | openSUSE Branding of mate-menus                                                                         | package
i+ | mate-menus-lang                          | Translations for package mate-menus                                                                     | package
i+ | mate-panel                               | MATE Desktop Panel                                                                                      | package
i+ | mate-panel-branding-openSUSE             | openSUSE Branding of mate-panel                                                                         | package
i+ | mate-panel-lang                          | Translations for package mate-panel                                                                     | package
i+ | mate-polkit                              | MATE authentification agent for polkit                                                                  | package
i+ | mate-polkit-lang                         | Translations for package mate-polkit                                                                    | package
i+ | mate-power-manager                       | MATE Desktop UPower policy management                                                                   | package
i+ | mate-power-manager-lang                  | Translations for package mate-power-manager                                                             | package
i+ | mate-screensaver                         | MATE Desktop screensaver                                                                                | package
i+ | mate-screensaver-lang                    | Translations for package mate-screensaver                                                               | package
i+ | mate-screenshot                          | MATE screenshot maker                                                                                   | package
i+ | mate-search-tool                         | MATE Search Tool                                                                                        | package
i+ | mate-session-manager                     | MATE Session Manager                                                                                    | package
i+ | mate-session-manager-branding-openSUSE   | openSUSE Branding of mate-session-manager                                                               | package
i+ | mate-session-manager-gschemas            | MATE Session Manager GSchemas                                                                           | package
i+ | mate-session-manager-lang                | Translations for package mate-session-manager                                                           | package
i+ | mate-settings-daemon                     | MATE session settings daemon                                                                            | package
i+ | mate-settings-daemon-lang                | Translations for package mate-settings-daemon                                                           | package
i+ | mate-system-log                          | MATE system log viewer                                                                                  | package
i+ | mate-system-monitor                      | MATE Desktop system monitor                                                                             | package
i+ | mate-system-monitor-lang                 | Translations for package mate-system-monitor                                                            | package
i+ | mate-terminal                            | MATE Desktop terminal emulator                                                                          | package
i+ | mate-terminal-lang                       | Translations for package mate-terminal                                                                  | package
i+ | mate-themes                              | Themes for the MATE desktop                                                                             | package
i+ | mate-tweak                               | MATE desktop tweak tool                                                                                 | package
i+ | mate-tweak-lang                          | Translations for package mate-tweak                                                                     | package
i+ | mate-user-share                          | MATE Desktop file sharing for the masses                                                                | package
i+ | mate-user-share-lang                     | Translations for package mate-user-share                                                                | package
i+ | mate-utils-common-lang                   | Languages for MATE utilities                                                                            | package

How to get it back?
Thanks