I mean, if you know how to install arch and if you know more than basic command line. Gentoo is not hard you just need patience to compile everything. I installed it and still consider myself a linux beginner. I mean I know more than linux beginners but still far from power users like mental outlaw and luke smith.
I think on threads, you have to opt-in in settings to be “part of the fediverse” and not everyone is enabled it for whatever reason.