Some of the issues I read on here are hard to imagine. It makes you lose your faith in GM but I would imagine if I went on a Dodge or Ford forum I’d read the similar crazy issues. I try and tell myself this forum is a small subset of owners with corner case issues and most people are satisfied with their GM trucks and have pretty good luck with them. My 2018 Sierra has been perfect and it has 34k miles on it.
Good luck and try and keep things in perspective. I agree there are some places where they have cut corners but there are some people with some real horror stories out there.