Yeah, I think it depends on how the distro decides to implement it, can't remember now but I think e. g. in Fedora KDE you need to tick a box somewhere in Discover's (KDE's updater) settings (and then it's Fedora's own Flatpak repo?). In Bazzite which I'm using atm it's Flatpaks all the way down anyway 😸
It's also quite nice in KDE that you can do Flatpak permissions etc in System Settings.
https://cartes.app/ is a new kid on the block to replaces Gmaps, looks very cool bit is also very alpha atm. But I'll keep checking it, it has some very cool features already (French only atm which I don't speak at all but it's still super usable.)
Interesting, I've had the exact opposite problem with Osmand last summer: Could not get it to use POV mode (not smart enough to navigate otherwise when cycling), it was always stuck on North Is Up (there's a button to change that on the upper left corner which they now changed to click and hold so I have my hopes up that it'll work now).
Oh hey, they found something even worse than the usual AI slob to illustrate their articles: AI slob that is terribly cropped and somehow has a wrong aspect ratio (its all squashed). Wtf.
It's interesting and kinda cool that you can't tell what distro it's running on when using Flatpak. I would have thought that there's some way to find out (it would be important for fixing bugs, I guess?)
I think Matrix or another (self-) hostable mesenger (or even a Signal group) would be better for this since it can and should be encrypted. I don't really see a use for something public when you want it to be family/friends only. And with Masto it's very probable that everything your family posts will be gobbled up be secret services, AI companies, Google/Meta etc. Encrypted Matrix would be private and afaik aware, there are no features Masto has that Matrix doesn't (can post images, text, video, reactions etc).
Now this one I can get behind!