[grey_earthling]

Flathub, as the most popular repo, ought to be a sensible default for ordinary users. So it shouldn't be purist if that means losing widely-expected apps, but it should have distinctly less shovelware than the Microsoft and Android stores' reputations (and Flathub seems to be taking steps in the right direction here).

I'd like for there to be a well-stocked Flatpak repo with policies like F-Droid's: they insist on rebuilding everything themselves, and they enthusiastically label potential anti-features. But that doesn't have to be Flathub, because using several Flatpak repos at once is easy. (This is really my only objection to Snap.)

Come to think of it, what I'm describing is a traditional Linux distro, so maybe Fedora and PureOS's existing Flatpak repos already fit the bill.