Exclusives? Not really, especially since a lot of the big ones (Ratchet and Clank, Spiderman, whatever) are now getting PC ports. The only really big heavy hitter I can think of without a PC port yet is the Demon's Souls remake. PS5 is a good option if you want a budget way to play new games and don't want to drop a couple grand on a decent pc.
You do have access to the entire PS4 library though, including the games that never got PC ports. Stuff like Bloodborne or Ketsui are options if either of those interest you.
Besides that, it's a good blu-ray/dvd player if you get the disc drive version. Not sure how often you use discs, but it's always a neat thing to have just incase a show/movie gets taken off of streaming services but you have it physically.