every game in existence where you can shoot at someone by simply clicking where they are either uses lag compensation or clientside hitreg, it's simply impossible to get around this
also players only teleport around on your screen in tf2 if you set your cl_interp very low
I’m not a game dev but I don’t really buy that being able to shoot other players requires compensation or client side hit reg. If you assume players have 35 ping (as Riot did) that is only 2 frames at 60fps which may make a small difference in edge cases, but I believe the game would still be very playable.
Spoiler alert: it wouldn’t be “very playable”. Not in a FPS. There’s a reason that basically every single FPS out there has it. You want headshots to happen when people click on people’s heads, not clicking ahead of them.
I stated a detailed reason why I think playing a game with 35 ping without rollback would be “playable”. If you would like to explain technically why it would not be playable I am willing to listen and learn, but posting some low effort Reddit-esque reply does not bring any value to this conversation.
also players only teleport around on your screen in tf2 if you set your cl_interp very low