[Cthulhu_]

> Also, I'm really curious about teams that do reviews after merge. I heard some places do it but I never really got a good understanding of the pros&cons

I can imagine it works for larger features that need a more thorough, formal review. I'm personally only familiar with code reviews on smaller changes (from trivial fixes to whole features, but often limited to <1000 LOC). The danger of only reviewing small parts of a larger whole is that you miss things in the larger whole.

But for that, you can do both; small code reviews from a 'task' branch into a 'feature' branch, then a big code review before merging into the main branch. The smaller reviews should catch the more trival or obvious issues.