Currently I get tons of such error messages:
/usr/libexec/xdg-desktop-portal has encountered a fatal error and was closed.
an found no way to get rid of. I found this article here
Latest Update Has Borked the XDG Portals Used by Firefox and Chrome
But none of the hints helped.
So far I know this service belongs to Flatpak, which I don’t (want) to use as well as Snapcraft since in my opinion these softwares are a crime, since they don’t bid a value except of wasting computer power and making electrical power distributors rich