Try what post #2 says? https://forums.debian.net/viewtopic.php?t=159418
The guys in this thread also mention checking permissions and versions https://forums.linuxmint.com/viewtopic.php?t=417949
I don’t typically use flatpaks so I am way outside my depth here.
Yeah, it’s what happens when things get bought by Private Equity.
I cancelled 3 memberships I have had since ~2016 over this shit.