well it is objectively outdated based on the different tech and capabilities.

now as to if these are something you want or need is another question.

Not to be stuck on my old ways too hard but didn't Sony make it so you can't play PS4 games on your PS5 without an actual PS4 controller?

That sort of thing really puts me off the changes, although I accept that it pushes innovation forward.

I enjoy being able to play OG Xbox, 360, and current-gen titles with the same controller.

No, you can play PS4 (and PS3/2 via emulator or streaming) games just fine with the DS5.

There is one exception, you can't play a PSVR (1) game that requires the camera to track the light bar on the controller with a DS5, but that's very few games and for technical reasons (the DS5 does not have the light bar)