It adds a new framerate target of 60fps, but you’ll need the game installed on your PS5 for it to work. The TLOU 2 PS5 patch won’t work if you’ve got it installed on an external hard drive and, obviously, won’t work if it’s on your PS4.
The patch adds a new option under the game’s display menu, where you can choose to target 30fps or target 60fps. This is in addition to the already available improvements on PS5, including the usual faster load times and such.
As of now, that’s all Naughty Dog is doing for The Last of Us 2 on PS5 and with PS5 in general, but the blog post closes with a tease of more Naughty Dog PS5 games to come.
It reads:
[Source: PlayStation Blog]