It's been awhile since I played Fallout, but I wanted to try out the PS4 Pro update. Overall the lighting and colors look more pleasing now than what I remember. I only have a 1080p TV, and while it looks like Fallout is doing some super-sampling, it doesn't look like it's as strong as Skyrim's. I only went through a few areas, Concord, Red Rocket, Railway HQ and Diamond City Market, but movement felt smoother than on the OG PS4.
I'm pretty pleased with the update, so I think I'll finally start digging into the DLC now that I'm winding down on Skyrim.