Yeah, it doesn't appear that PSSR (which I cannot help but pronounce with an added i) is the highest quality upscaling out there, combined with console gamers not having experienced FSR/FSR2/FSR3's uh, specialness is leading to people being confused why their faster console looks worse.
Hopefully Sony does something about the less than stellar quality in a PSSR2 or something relatively quickly, or they're going to burn a lot of goodwill around the whole concept, much like how FSR is pretty much considered pretty trash by PC gamers.