Gedit from flatpak not able to open files out of file manager on network (silverblue)

I’m using silverblue 33. When having mount an smb share through the gnome file manager and try to open a text file wit gedit, gedit reports “Could not open file smb:\…” and “Unable to handle smb: locations”. Prior to silverblue I did not observe this. Is it due to the flatpak?