If you like having more finetuned control, Gentoo is pretty neat.
Flaky
Hey, don't sweat it. You gotta use what's right for you and that's all that matters. Talking from a dual-booter's perspective, here.
System76 seems to be well-rated for Linux support, even ones with NVIDIA in them, and Framework maintains a list of Linux distros they support.
AFAIK, Fedora is the only distro that's getting rid of X11 support, the other distros are still packaging it AFAIK.
AdGuard on iOS has a DNS that blocks ads as well as gambling and porn I believe, it basically piggy-backs off of the VPN feature.
There's two projects aimed at carrying on Unity in the modern era.
Unity7/Unityd essentially continues support for Unity as it was shipped in Ubuntu and focuses more on that desktop experience, and Lomiri continues what would've been Unity 8 and focuses more on a consistent UX across mobile and desktop.
I feel like I'm a chronic distro-hopper sometimes, but no matter how many times I try, I just can't settle into OpenSUSE for whatever reason. The OBS feels a bit more of a wild west than the AUR.
Been playing some Cyberpunk 2077 and also finished the anime. I Really Want to Stay at Your House has been on repeat lately. Such a great synthpop tune.
I don't think PeerTube would work here, unless you mean a bot that posts PeerTube stuff from certain channels every so often.
There is a bot around here that converts YouTube links to Piped ones.
Pleroma should work, but I'd also raise an issue with GoToSocial about the specific issues you're facing as well.
There are Gentoo distros that have binary packages, and Funtoo (a Gentoo-based distro that's 64-bit only) even suggests using Flatpak for certain software that needs 32-bit resources like Steam. Hell, you can install Flatpak on Gentoo if you want. Gentoo also provided binary packages in the past but only for a few packages (mainly web browsers, but annoyingly not qtwebengine. maybe that's changed here.)
Gentoo is more about having fine-grained control of your system than anything else nowadays. If that's what you want, go ahead! For most people, Arch or even something with less control like Ubuntu or Fedora will suffice.