Lineage gives you a decent app ecosystem (F-droid) with the option to set up Play Store for full Android compatibility
Ubuntu Touch has a very limited ecosystem compared to F-droid, but might be enough for someone willing to do most tasks in a browser.
Stuff like phone calls, pictures, sms, podcasts, music, and other simple tasks will work equally well on either OS assuming your device is supported
https://lemm.ee/post/46927948
This person was having trouble with Bazzite the other day. Do you have any idea what the issue could be? Works for me on Fedora