not sure if you played stellar blade but it's quality mode looked more aliased than performance mode for some reason.Doesn't make sense to use PSSR in every game, especially games that already finished and are already hitting 60 fps and the visuals don't stand to gain much in the process.
The benefit of PSSR is to be able to reduce resolution in order to get you to the framerates you want at a lower native render. If you're already high resolution high frame rate the only benefit is to throw in something like rtx and if you're not going to do that, then why bother? Still nice to get native PS5 Pro games.