the point of DLSS and so on is that they help to create a high-end experience with low-range or mid-range hardware. I don't think they are using it as a crutch on most games. It's like upscaling on consoles, native 4K is not attainable on many games, so they use upscaling to compensate for that, they have no choice.
I would say it always applies to the high end.
I just went from a 27" 170 Hz IPS to a 42" 144 Hz OLED.
My 4090 is not sufficient to run "CyberPunk 2077 - Phantom Liberty" with PathTracing without DLSS
Or "Black Myth - Wukong"
(And I was running DLAA, not DLSS before, but 4K is a performance killer, so now I have to run DLSS (Quality))
I hope the 5090 will enable me to run DLAA again, because I can see the difference cleary between DLAA and DLSS