also not showing where monty really is (IF side of deeprun tram)

https://www.wowhead.com/quest=6661/deeprun-rat-roundup

I figured this is intentional, although adding (entrance) to tooltip might make that clearer.

That might make sense for the one in IF, but not SW. And the quest isn't showing up in IF DRT either.

Not sure the best way to handle this to be honest, I don't think theres a way to properly render notes inside the deeprun instance, so if it doesn't show there it can't really show anywhere

Yes this is intentional behaviour, the map shows both entrance points to the instance.