@AussieOldGuy Correct quoting…so important!!!
It is sudo zypper dup && flatpak update
zypper dup is used to upgrade rpm packages on openSUSE products (mainly Tumbleweed/Slowroll).
flatpak update is used to upgrade flatpaks.
Both are the intended tools/commands to safely upgrade the different package formats. If you don’t use flatpaks, you don’t need the second command…