As you already have played the PS4 and Xbox One S consoles, you can expect the same vibes with the PS5 and Series X, but with more improvements. I would look into content for deciding which one you will be more appealed.

Xbox: Gamepass is the Troy horse, with hundreds of games and some on Day 1. Moreover, the new studio acquisitions will improve the content on the RPG and FPS fields.

PS5: Strong 3p narrative games, japanese presence with exclusives as FF XVI as well as innovating with PSVR2.

It depends on your preferences. I decided to stick with Series X and Switch, and I don't regret not buying the PS5 at the moment. But different people, different preferences.