It's quite possible. I'll agree that sometimes, making the client authoritative for some stuff can reduce load on the server, but generally, it's both simpler

It's quite possible. I'll agree that sometimes, making the client authoritative for some stuff can reduce load on the server, but generally, it's both simpler and less "cheat prone" to make the server authoritative for everything, and have the client just send "here's the player's input" and then apply client side prediction (this is a common cause of "rubber-banding" in multiplayer games: poor client side-prediction)