theyre way too different. fortnite is pretty arcady and faster paced than pubg id say. when the shooting mechanics are fixed id say its a solid game. but i cant really forget how shitty the actual fortnite game was and that they saved it by joining the BR hype thats been going on since pubg. pubg is a more realistic approach to the genre but it has quite a way of optimization still ahead. both will be okay and have decent playerbases.