15+ years in engineering here. 10+ in leadership.
Code formatting hasn't been an issue since the early '10s. Tabs or spaces? Who cares. Your editor can make it look like whatever you want and it won't effect the code.
As for other asshole-ish behavior or gatekeeping, I open it up to a vote. Let the team determine best practices. Don't like what your team decides? Find another team to shitlord over.
Can someone make a gnome or kde skin like this pls?