My thinking exactly; Nintendo tends to make weird hardware decisions and not prioritize visual performance, so it would not surprise me if Switch 2 forewent DLSS.
Let's hope that's not the case. That would be such an easy win for them, and "future-proof" a Switch 2 for a longer life-span.
Retro Tech Select - My Youtube channel. Covers throwback consumer electronics with a focus on "vid'ya games."
Latest Video: Top 12: Best Games on the N64 - Special Features, Episode 7