This is info I wasn't aware of, which is very convenient. Most games these days that offer upgrades of saves from PS4 to PS5 versions have a feature that lets you upload your save to their cloud and then converts them to PS5 on your PS5, like Resident Evil Village, Spiderman, Spiderman: Miles Morales and Marvels Avengers. It's nice that you can just upload them to your PS Plus Online storage, then just download them to your PS5 and use them. I just wish Doom Eternal had this feature!
How to Upgrade Mortal Kombat 11 PS4 to PS5! (Mortal Kombat 11 Playstation 5 Upgrade) - YouTube