Bit of a late entry, but the remake of Silent Hill 2 is IMO the best 'pure' horror game you can get on a PS5 right now. I don't know how it stacks up against the original, since I never had the chance to play it, but if you're like me and never played or even watched the original, I can't recommend it enough. It'll get in your head, and it'll probably never leave. The atmosphere, writing and performances are top-tier, the game is fun to play even when it's freaking you out, and even if it's shamelessly based on an older game, I've played other games that shamelessly wanted to be Silent Hill 2, and this is my favorite of those.