Arstechnica also made a comparison graphic review https://arstechnica.com/gaming/2019/10/the-switcher-is-real-witcher-3-on-switch-is-a-blurry-tolerable-compromise/
YES, IT HAS WET BUTTS —
“The Switcher” is real: Witcher 3 on Switch is a blurry, tolerable compromise "
" is that Witcher 3 on the Switch looks a lot more like Witcher 2. For starters, its apparent resolution is some of the blurriest we've ever seen on Switch in both docked and portable modes. While the results look comparable to Doom 2016, Witcher 3 is a much slower game, and it demands that you let your eyes linger over massive, dramatically lit landscapes and towns. The blur draped over all of that scenery is more noticeable than, say, a rapid-fire pulse of shotguns through demons' faces."
Panic Button had it much easier given Doom was 1080p 60 fps on PS4 and not open world, Witcher 3 was 1080p 30 fps with drops on PS4 and 900p on the Xbone.
Witcher 3 port is a miracle, even if it's 408p or whatever in portable, still above Doom.