That would be ray tracing as RE4 water reflections are RT, do you remember where you've seen those dots precisely?
RE4 RT effects are not the new generation of RE Engine RT seen in Dead Rising, but I've found them to look clean and stable, surely in comparison to what they were in RE7 for example.
I believe you might be referring to this (time-stamped)?
Just to avoid confusion, Thread is about Pro having issues not found on base PS5. Everything concerning RE4R running properly on Resolution Mode with RT and Hair Strands look and run better than it does on base PS5.
P.S. It's interesting how RE4 RT reflections have been updated tremendously from version 1.00, they look awful on launch version.
Neither does the RDR2 he mentioned, there was even a Thread about it..
Edit: If any mod comes through can you change the title to "Clarity" Bump Confirmed rather than Resolution. As I have no way to actually verify if the resolution has been increased. I'm suspecting that it has not, but because I tested this game with PS4 game enhancement feature turned on, I...
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Your mistake was to assume this Thread, created based on a MW3 video, on a premise no official channel/comparison/DF shared, was going to provide interesting and thoughtful analysis on those handful of games having issues (like Silent Hill 2 or, probably MW3) instead of being a playground for certain people who don't own the machine that are now trolling or pretending/assuming the console runs games worse.