Initial setup can be hard, and then, because GNU/Linux lets you do whatever you want, It’s not hard to bork the system if you’re using commands you don’t understand. The biggest realization for me was that if I want a stable system, I can’t expect to experiment with it / customize it to the nth degree unless I have a robust rollback / recovery solution like timeshift in place. Feeling very empowered after leaving windows, I have destroyed many systems, but truly, if you set up your system and then leave it alone, these days it’s not difficult to have a good experience.
But yea, you’re totally right: the userbase can be toxic AF, and there’s no one place you can go to learn the basics you really ought to know.