I just tested it in Outer Worlds 2... and my god... it's 1000x better with denoising off. the difference is actually insane.
in screenshots it's already noticeable, but in motion the increase clarity is even more impressive.
this is with preset K (I think that's the one it ships with) at 1440p, hardware RT enabled:
like... jesus, this should literally become the engine default whenever DLSS is enabled.
anyone who wants do add this to outer worlds 2, beware that the game tries to delete engine.ini files when it closes. so create it, add your variables and then set the file to read only.
EDIT: even when using just UE5's TAA instead of DLSS it looks better btw. and mostly stable.
which makes me wonder what the fuck that denoiser even does... like... why is it there in the first place?
EDIT 2:
another set of screenshots... like... what are we doing here Epic? why is that denoiser enabled by default? every TAA method in the game seems to denoise better than that crap!
just look how all the surface detail is preserved with the denoiser off! all the little marbling on that wall is there. and with the denoiser on, it just looks like mush.