You probably wouldn't say that if you actually looked at a PS3 game vs. a PS5 game. The difference in texture qualities tend to be immense. Older games will have textures that looks like starchy blobs of the right color scheme. Newer games will have detailed textures that have depth to them.
Here's resident evil 6 on the PS3. Look at the roofs and floors, and what the monster skin looks like. Lighting is very glowy and has that heavy bloom effect that was popular at the time. https://www.savegamedownload.com/wp-content/uploads/2017/11/...
Here's resident evil 8 (I think on Xbox?). Even on the other end of the room you can see details in the wood paneling. The lighting feels more realistic. The reflections off of the floor varying by material and angle are particularly nice looking. The chandelier looks very intricate whereas in an older game it probably would have been comprised of 2D slices or something.
https://i0.wp.com/techstomper.com/wp-content/uploads/2021/05...
Are these things you notice once you get playing the game? Eh... probably not.
