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Nvidia "confirms" DLSS 5 relies on 2D frame data as testing reveals hallucinations
(www.techspot.com)
This is a most excellent place for technology news and articles.
You might be thinking of FSR? I don't know of any handhelds that support DLSS as they all use AMD hardware, and they also don't support the latest AMD RDNA tech so you're such with crappy FSR 2 most of the time which is indeed a horrible blurry glitchy mess.