Exact opposite for me.
9/10 out of 10 the crazy player who killed me OR the top 3/4 players on EITHER side are NOT Xbox players....usually Stadia/Steam followed by PSN...and we all know Steam and Stadia users can bypass controller use...(sure all consoles can).
It's fricking garbage. Being shot from around corners, across the map fusion deaths...no visible line of sight on the player that just killed you, but they did!
It's due to frames. On thier end they had already killed you on their screens because their frames are much higher and the game 'moves' faster for them than a console at 30 or even 60 fps.