Really? I mean honestly, I think you’re basing the general population on your personal perception.
You really need to first grok how little attention most people pay to these new features. It’s enough for any vendor to paint something as “new and shiny” to get people to buy into it.
Look at 5g for example: the moment Android phones came out with “5g”, folk were all “why doesn’t Apple have 5g yet” despite the fact that, not only was 5g availability severely limited, but that most of the purported 5g chips were not ready for full 5g (The Moto Z3 came out August 2018 with a 5g upgrade available- despite the fact only 2 cities at the time had any sort of 5g availability)
Didn’t make a difference though. People thought it was faster and better, so they brought into the hype.
Hype, exhibit A:
View attachment 942471
So, is 90Hz and 120Hz all that and a bag of chips, really? Or is it a nice combo of Hype and
potential functionality?
For general consumption, whilst a higher refresh rate might appear to be smoother, it comes at the cost of battery life. Refreshing the display either half as much again to 90Hz has a price - more so at 120Hz.
So, now, back to your "Everyone" again.
If you think "Everyone" would notice this effect, then you seem to have a massively elevated view of most people's perceptions.
Sure, the feature will sell, it's "new and shiney", but as to if everyone will notice? Nope, they'll claim they will, but the reality is far different.
Is it pointless tech? Heck no, it certainly has its place, but right now, just like 5g, not all ProMotion 90Hz and 120Hz features are ready to be exploited.