I know 2 apps

1. Milktea
2. Kaiteki

Milktea seemed to work for me when I tried it when Firefish was still called calckey.social. kaiteki app just gave me a blank screen, so can’t comment on that.

Anyway, I just use the web app if I use firefish.

Kotatsu is a good one, people often don’t recommend kotatsu. Maybe that’s because tachiyomi offers more features.

I use nextdns in ‘private dns’ options on my android phone to block ads. This give me the option to use VPN, which I wouldn’t get if i use DNS66 or Adaway.

On my old phone i used Florisboard, it was pretty good and it’s FOSS as well.

These days I use the samsung keyboard as I recently switched to a samsung device. The keyboard customizations are really awesome, if you have KeysCafe module installed. Not sure how privacy friendly it is tho.

Opensuse is great. Yast was more useful than I initially thought.

On a different note - For people who like tinkering, nixos can also be a great option, it also allows rollbacks but doesn’t use BTRFS snapshots out of the box like opensuse.