I have been using Universal Blue’s Bluefin variant and it has been rock solid. It is atomic desktop and all updates, both Flatpak and Image update, are handled automatically.

You can turn it off here.

System Setting> Window Management> Desktop Effects> Mouse Mark

That can be possible. I remember seeing the option in a clean profile while using Ubuntu.

There is no container option in new Firefox profile. It appears only after when you’ve installed Multi container extension. Firefox from Arch Linux repo.

I use Seal, yt-dlp android front-end, on my phone to download videos from streamming sites.

For torrenting, Deluge on my computer and libtorrent on my android. I mainly use torrent for anime so I download a .torrent file from nyaa and open it with Deluge. Done.

Watching 10+ more shows. Currently enjoying My Happy Marriage, Zom:100, Mushoku Tensei s2, Helck the most.

There are a lot of standalone Gundam. You can start there. The most recent one is Gundam: Witch from Mercury which just ended today. Gundam:Iron-Blooded Orphans is also a beginner friendly Gundam series.