I have been using Disroot Mail since August. It's a nice mail provider focused on not harvesting/selling your data.

Nope. Last time i tried osmand, it just asked me to pay.

Also:

Flatpak sucks in my opinion. What if i need to install something that is not on flatpak? The AUR exists too.

True.

Well, i do not have an app named "Unknown". I am really concerned if something was sideloaded without me knowing.

Well as you may know, when you try running pyinstaller on linux, it packs the .py file into a linux exectuable, not a windows executable.

I use Huawei Health to sync my Workout Data from my watch to my Phone. I don't really know if i can get rid of it, as its the app my watch works with. (Huawei Watch GT 4)

Well ever since i got this iphone, i didnt really bother removing all the bloat. Thanks for the recommendation though!

Well idk if this counts, but when i started caring abt my privacy i filled my icloud storage with garbage so that it does not back up any pictures. (also i dont have a mac)

Maybe try using pulsemixer. (if you have pulseaudio installed ofc)