The development of UAD has been stopped/paused. The fork Universal Android Debloater Next Generation continues it

Here you can find (at least for Android) app lists for Fediverse apps (take also a look at the subcategories): https://android.izzysoft.de/applists/category/named/fediverse?lang=en

Perhaps you should add this criterion to the start post? Otherwise ten more people will recommend GrapheneOS…

Another alternative is iodeOS. They also sell pre-installed Fairphones and support a few more devices (not as many as eOS) https://iode.tech/de/installation-iodeos/#1611161940311-4fb3b2cf-4d60|sc-tabs-1700424213961

Here you can filter the search for Custom ROMs by release year. A few current models are already available: https://www.sustaphones.com/ beside Pixels i.e. Xiaomi, 2023, redwood X5 Pro 5G, Teracube 2e, 2022, emerald, Motorola g32, g42, g52, …

My answers from Firefish unfortunately do not arrive here on Lemmy. It would be great if it basically worked from Firefish, now. If it is instance-dependent, I would perhaps change the instance, because Firefish offers many advantages compared to Mastodon.

I would recommend DivestOS. If you need MicroG, there is also iodeOS. I would recommend this over /e/OS because system apps can also be selected or uninstalled.

Take a look at Cryptpad Forms or FramaForms.

There is a very good series of articles here, but in German: https://www.kuketz-blog.de/android-ohne-google-take-back-control-teil1/ Parts 1, 5, 6, 7 & 8 can also be realised without custom ROM and root.

Yes, you could also look at Neo Launcher or Shade Launcher, both at in the F-Droid repo by Izzy

Here is a list of other “Minimalistic / simple launchers” as well.