This Seeking Tech article compares the two different modes of Resident Evil 0, one with the “Enhance Image Quality for PS4 Games” setting enabled and the other with it disabled, when running on a PlayStation 5 Pro.
You can find the video below:
The image enhancement does not appear to make much of a difference when it comes to the computer-generated movies.
If you look closely, especially at the texts, you may be able to notice a slightly sharper look in the pre-rendered background, as well as the character models.