Some of this stuff is bananas, and you're totally within your rights to say, "please read this PR; I am using this library / this is Python.". But if someone's asking me for a refactor, I say "let's make a separate ticket for that", and if multiple people ask me for conflicting things, it's totally fine to say "please figure this out and update this PR, or I'm ignoring both of you". I think you made a good call switching jobs, but sometimes a great job is worth dealing with some troublesome processes.