This video compares the Pro (PSSR2) mode of The Last of Us Part 1 to the other graphics mode of the game. All these modes are running on a PlayStation 5 console.
For this comparison, Motion Blur, Camera Shake and Film Grain are all disabled.
You can find the video, with time stamps, below:
Chapters:
0:00 Fidelity vs. Pro (PSSR2)
2:55 Performance vs. Pro (PSSR2)
5:50 Pro (PSSR1) vs. Pro (PSSR2)
The image quality appears sharper with PSSR2 than the rest of the modes, even the Fidelity mode that features a higher native resolution.