2021 where right click is for cancel and opening additional menus (right click npcs, right click bag on action bar, whatever else).
Generally don't have the problems people do with navigation for whatever reason. Don't remember if its setup this way but I have E and Q for turning cam left & right and a additional button on my mouse to flip through characters.
Edit* Guess I can mention the new feature that is right click now, so you can right click a partner and ungroup them.