Curiously, it turns out Elden Ring on Switch 2 does not use DLSS at all.

Settings wise it seems like a port of the PS4 version, but it does run at a higher resolution and framerate than PS4 did.

@curl-6

Elden Ring is not using DLSS even on PC (unless you inject it yourself), so I guess it would be quite surprising if it used it in Switch 2 port (after all, it's From we're talking about here).

Ah, that is curious, I wonder why not, is there some aspect of the game's makeup that's not compatible with DLSS in some way, or is it just Fromsoft being weird?

Mostly the latter. FromSoftware just hasn't added native support to their proprietary engine, but it shouldn't be hard to do at all given that they have a proprietary TAA and the modders added DLSS support through a driver level hack.

I think the actual benefit of DLSS would be pretty minimal though for this game on SW2. SW2 is probably CPU-bound, and any image quality gain would probably be minimal. The image quality is great from what I have played (in handheld mode mostly.) Though maybe they could squeeze out a 40fps mode if they dropped the resolution enough. Of course, not locked just like their 30fps target isn't.

What @sc94597 said - I'll add that DLSS is not always the best solution. Not sure what the situation is currently, but back when Indiana launched, I've played it on PC and decided to use their TAA instead of DLSS, since latter was doing some really weird stuff with some of the lighting (producing checkerboard pattern).