Activision has now updated Call of Duty: Warzone to PS5 which makes it possible to play at 120 fps, but there is a requirement.
To be able to get up to 120 fps on PS5 in Call of Duty: Warzone, it is required that you drive with HDMI 2.
1, which card and means you must have a TV that can handle 120 fps, quite obvious.
When you then want to set 120 fps in Call of Duty: Warzone, you have to do this yourself and you will then find “Performance Mode” under “Saved Data and Game / App settings”, good to know if you have not looked in the right place.