A saying I've come across is: "Don't let perfect be the enemy of good"
I had a coworker who would always be diplomatic about code changes he felt could be improved but when he felt he was nitpicking, where he would say: It's better than it was. It allowed him to provide criticism while also giving permission to go ahead even if there were minor things that weren't perfect. I strongly endorse this kind of attitude.
I have a crippling guilt about not keeping my apartment as spotlessly clean as my parents did theirs, to the point that I end up procrastinating, which just makes it worse.
The trick to overcoming this is not to aim for "clean" but for "cleaner than before".
Just keep chipping away at it, whether it is a messy codebase or a messy kitchen.
Hmm, in every team I've been in (only 3 tbf) we almost all followed the "nit" approach for PRs.
vs where it was understood nits could be ignored if you didn't feel it was an urgent thing vs a preference.