Comment by ksymph

On that last point, GNOME/Gtk/Adwaita apps generally function really well on small screen sizes. The design language naturally suits it, and in my experience most apps will even make some layout adjustments where they're needed when resized to ~phone screen dimensions.

Anecdotally, out of the ~50 or so I have installed right now on my laptop, which covers the basic calculator/calendar/contacts/etc., and also things like file compression, torrenting, a Mastodon client, RSS reader, and so on, all of them are ready to use on a phone.

Alas, if only there was a (reasonably priced + fully functional) phone that could use them.