https://wccftech.com/biomutant-ps5-no-4k-launch/

Last week we brought you footage of Biomutant running on PC, Xbox One, Xbox Series X, PS4, and PS4 Pro, and now publisher THQ Nordic have released a look at the game running on Xbox Series X/S and PS5. Unfortunately, the footage may be bittersweet for PS5 owners. While the Xbox Series X version runs at dynamic 4K and 60fps and the Xbox Series S is dynamic 1440p/60ps, the PS5 version will only by 1080p/60fps. THQ Nordic provided the following disclaimer at the beginning of the PS5 footage…

The footage you are about to see has been captured on a retail PS5. With this build, the option for native 4k on PlayStation has been deactivated due to stability- and performance-related reasons. What you see here is 1080p @60fps upscaled to 4k @60fps. It will remain deactivated for the release version, too. It will not be a native current-gen experience. More information on that will follow soon.