Lost Legacy is great and as good looking as 4 was, and I'm only playing on a standard PS4. There are many scenes that I'd just stop and take in the visuals, it was just that good looking. I found myself taking photos in Lost Legacy quite a bit, so I'll need to figure out how to share photos here perhaps (in spoiler tags of course). Overall, the game was as good as you'd expect for Uncharted even without Nathan as a lead character. A first for the series, there is an open world section, which was a ton of fun to explore. But it still has impressive set pieces and of course a top notch plot with very well written characters and dialogue.
In fact, I recently played through the original 3 Uncharted games with the intention to take photos and am now in the middle of my second playthrough of 4 (I never took screens in my first playthrough, now I've taken over 130 pics so far in U4 alone) and I intend to continue right into Lost Legacy.