> Maybe that's me, but I rarely saw teams which over-document, under-documenting is usually the case.

This is a good point, although this recently changed with LLMs, which often spit out a ton of redundant comments by default.

Claude Code in particular seems to use very few redundant comments. That or it's just better at obeying the standing instruction I give it to not create them, something other assistants seem to blithely ignore.