Damn, that's another thing about Firefox that absolutely drives me crazy. They implement some feature as an extension, then they include it with the browser by default and just leave the extension there for some reason. It's the exact same thing with Firefox translations, it's integrated into the browser now but they still have an extension https://addons.mozilla.org/en-US/firefox/addon/firefox-translations/
Andromxda
As you said, F-Droid is the way to go. But if you want to browse the Play store without ads, use Aurora. It's an open-source client for Google play that doesn't show ads and doesn't even require you to log in with Google.
Many banking apps work on GrapheneOS: https://privsec.dev/posts/android/banking-applications-compatibility-with-grapheneos/
Have you tried other options like AnySoftKeyboard or HeliBoard (fork of OpenBoard)
I'm pretty sure you'll like AnySoftKeyboard, it's pretty minimal and similar to your current keyboard. And it works with Thunder.
You can still submit a bug report for Thunder not working with Kii, I'm pretty sure the Thunder devs would be willing to fix this.
No. The last commit made by the developer was 4 months ago https://github.com/Bazsalanszky/Eternity/commits/master/?author=Bazsalanszky
Thunder because I think it has the most features, the UI is designed pretty well and I like the user experience it offers. They are working on amazing new features like notifications over UnifiedPush and moderation tools (I think no other app has mod tools). It's completely free and open-source and available on F-Droid via the IzzyOnDroid repository. And unlike Sync, it doesn't have ads.
I recently also learned that it's one of the few open-source (and still actively maintained and developed) Lemmy apps, which is quite sad. I don't understand why so many folks use proprietary apps like Litoff, Summit, Connect, Boost or Sync. Sync is especially bad, because it has ads and trackers.
I tried Jerboa before I switched to Thunder and hated it, it just feels like an incomplete and buggy mess with poor UI/UX.
If you have a hacked Switch you can use mtp-server or ftpd. I like the MTP approach, it works just like DeckyMTP on the Steam Deck.
Doesn't it have ads?