The newest major update to Call of Duty: Warzone also adds 120Hz support for the PS5 version of the game.
You have to turn HDR off to get Call of Duty: Warzone to run at 120fps on PS5
Call of Duty®: Warzone™ Season Four Reloaded Patch Notes
Call of Duty: Warzone Update Adds 120 FPS Support on PS5
PS5 and Xbox Series X games with 120fps support
Call of Duty: Warzone at 120Hz - has PS5 back-compat evolved?
Call of Duty Warzone Season Four patch notes are here, adds 120fps mode on PS5
How to play Warzone 120 FPS 120hz On PS5 - Fortnite Insider
Call of Duty: Warzone now supports 120fps on PS5
Call of Duty Warzone Season 4 Update 1.38 Adds 120Hz Support on PS5
Infinity Ward quietly adds 120fps to Call of Duty: Warzone on Xbox Series X - but not PS5
Call Of Duty: Warzone to get dedicated PS5 & Xbox Series X update
The recent update made it so 120Hz could be enabled whilst PS5 had the HDR setting on, this massively drops the resolution, is this expected? : r/CODWarzone
Call of Duty: Warzone Season 4 Reloaded Update Patch Notes
Warzone Season 4 adds PS5 120hz support, new vehicles and more
Call of Duty: Warzone PS4 becomes first back compat game to support 120hz on PS5