I'm a huge fan of custom linter rules.

Instead of going through PRs and nit-picking stuff, I just create new custom linter rules that catch those team-specific or project-specific things.

This has the positive effect of making things way more welcoming for junior devs and newcomers. Nothing replaces getting the first PR with almost no PR comments thanks to a linter.

I hate that a lot of people read the assertion that "PR reviews are a form of creating an internal coding culture" and become human linters, only nit picking PRs for the power trip. This is not only annoying but also makes people ignore the more important parts of the review.

I even made it a rule in every team I managed: if something is bothering you constantly in PRs and it can be replaced by a custom linter rule, let it go and write a linter rule for that later. I only met two people in my career who opposed this, and that was 100% because it made their nit-picking redundant.