I can't speak for fedora tho. Some search queries later the issues of other ppl sound similar to my issue.
Which problems do you actually have? For me there ain't any restrictions.
I can install everything easily - for demos or similar software which can't be added to your library instantly, you should enable Steam Play for everything.
I had a problem using Steam as flatpak - after downloading ~15GB the system may freeze or after playing for some hours.
If you're using PopOS you should disable flatpak installations and install everything via deb-file.
The issue itself is for locking out of your account when activating 2FA. Let's hope for that at least. :)
Maybe it'll be necessary to open an issue just for that.
I like this game ... 😅