Hi Alex, I've got the same problem on my end. Ryzen 5 7600x, Radeon 7800xt and 32 gigs of ram, 1tb of m2 storage.
Fps and ping is stable as always but since the last update the game is unplayable, I had no problem beating people in Division 2 and now I'm not even able to win a game in Division 3 due to the game registering my inputs a few miliseconds later. Because of this my players take 1 extra touch before any action I do. I deleted the game, updated drivers, did all the troubleshooting that the customer service suggested, tried all the workarounds, reinstalled windows and did a full cleanup on my pc. Nothing worked.
It do be the AMD maybe xD.