I also dont understand why companies are copying this from Diablo, its bad design IMO. Especially in a game like Wolcen where you have to use 2 ressources and you are forced to use your staff attack all the time. Why cant I just hotkey the staff attack to a key ? Its so annoying and kills the flow of combat when I always have to SHIFT+LMB inbetween.
At the VERY LEAST when I click on a target with LMB and keep holding down the LMB it should keep firing even if I dont have my cursor over a monster anymore until i cancel, thats how it also works as far as I remember in PoE and Diablo.
I think not allowing the LMB to "move only" has the reason because you use your LMB to interact with things in the world like vendors and other stuff. But having move, interact and attack all 3 on LMB is ewwwwww very bad :/. Of course as option its fine but not forced ....