Fandom Loki: super powerful (often implied more powerful than Odin himself) and clever. Can literally do anything with his magic. Elegant and deadly. Ignores Thor, doesn’t actually care about Asgard or ruling anything really. Is a melodrama queen.
Canon MCU Loki: super clumsy, gets his ass handled by literally everyone. Can only handle NPCs. Knows like 3 magic tricks. Is outsmarted by Thor. Probably has the lowest death toll of marvel’s major villains. Craves Thor’s attention and only wants Asgard to love him (also: eat grapes). Is a sassy drama queen.