https://www.techpowerup.com/346852/ps5-pros-upgraded-pssr-scaler-debuts-in-resident-evil-requiem-more-support-in-march
Looks like Resident Evil Requiem is the first game to use the more advanced PSSR version.
OLD PSSR (1.0):
New PSSR (2.0)
Digital Foundry also hinted, that there will be a toggle to system wide, apply the new PSSR 2.0, to older games that already support PSSR 1.0.









