Just purchased this on the Switch and it's really surreal playing it on the Switch.
Though, I want to submit a bug about the Switch port: When you close the weapon wheel, the game seems to play very slightly slower and you can tell with the weapons like the SSG feeling slower. Only way I could fix this was by pausing and unpausing it. Other than that, this is a super stellar port.
Unrelated, but I was snooping the PC game files (as I typically do) and I found some cool/interesting things in there:
For one, the dev console states that this is KEX 4. Was this used in any other KEX engine games? If not, I'm assuming Powerslave: Exhumed will run on KEX 4 as well?
Another thing is that the actual internal(?) name for this remaster is "Quake EX" judging by the QuakeEX.kpf file.
Also, the PAK files have a folder called "tactile" which has PS5 Dualsense WAV files as well as Nintendo's BNVIB files for HD-Rumble.