https://eu.community.samsung.com/t5...

Read this article, it says it there. PS4 works anyway - on the Samsung thing it also says big and clear: GAMING READY

It also says:
"On the Playstation 5, you can currently install PS4 games on an external SSD, but not PS5 games. So you don't have to give up your existing game collection when new games come out, but can store them on the T7 Touch - leaving more space for new games on the Playstation 5".

PS: If you can google, you have a clear advantage ;-)