[n and ]n for jumping to next VCS conflict marker does not seem to work in visual mode.
Correct! Visual mode maps are hard, yo.
Note the operator maps (e.g., d]n) are undocumentedly clever, so you might make peace with using them instead.
I came here to file precisely this issue. Learned about the operator maps, which will be good enough in the meantime (thanks!). But +1 for visual mode as well.
hard yo is right. Just tried to implement this and I'm baffled as to how to prevent leaving visual mode. Ugh, vimscript