This applies to Apple as well.

Can this handle plugins? I use a modded DeDRM on my Kindle Unlimited books, and so require plugin support.

That’s stupid. Nothing stops you from just installing regular Ubuntu if you love snaps so much.

Thunder, which is on the IzzyOnDroid F-Droid repo is a decent Lemmy Android app that plays well with lemmy.world currently. It also supposedly has an iOS version.