thanks! this didn’t solved my specific problem but caused another problem for me (e.g. _M_A_N(1)), but while searching about MANROFFOPT I came across a reddit post I had somehow missed when searching for a solution, and it it the actual solution was mentioned. what worked for me is export MANPAGER='nvim +Man!' instead.

I update every weekend because that’s when I have time to fix the issues that (rarely) come up because of updates. I also update and restart if there’s a problem I don’t understand as a way to try to solve that.