I am not gonna lie. I have been VERY disappointed by most of these PS5 ports. Death Stranding is an exception, not the norm. Not every game is doing this 8x boost to the pixel budget taking PS4 games from 1080p 30 fps to native 4k 60 fps while offering higher quality PC settings. We just had Uncharted 4 get released and ND basically increased the resolution by 75% and the framerate by 100% and called it a day. Thats not even a 4x increase to the pixel budget. The PS5 should be able to do much more in that game, and unless they butcher the PC version like they did GOW, we should soon find out.
Guardians of the Galaxy runs just fine on PCs at 60 fps. You dont have to go all the way down to 1080p to get 60 fps even that is variable on consoles. On PCs, I have more control and can do far more with my 2080. Horizon not being able to do 60 fps without heavily downgrading the resolution is bizarre and I am a 100% sure my PC should easily be able to run it at native 1440p 60 fps whenever it comes out. Same with Ghost of Tsushima.
Typically I'd agree with you on the benefits of a closed system, but we have rarely seen it this gen. I believe Doom, AC Valhalla, Spiderman, Death Stranding and a couple other dynamic resolution games are the only games that have truly been able to extract every ounce of power from the PS5 and XSX. Those devs settling for fixed resolutions and capped framerates have shortchanged us.