This Seeking Tech article compares the two different modes of Resident Evil HD Remaster on the PS5 Pro, “Enhance Image Quality for PS4 Games” Enabled and “Enhance Image Quality for PS4 Games” Disabled.
You can find the video comparison below:
Similar to Resident Evil 0, the enhancement doesn’t appear to affect the computer-generated full-motion movies.
The pre-rendered background, and character models, may look a little sharper if you look close enough.