Eventually good enough is good enough, toasters got there decades ago. Computers got there in the last 10 years. Phones are getting there.
The only thing I am interested in is a better camera in my phone, every thing else has been good enough for a couple of years.
When I did the graphics card upgrade, I wanted serious power to do high rez gaming. I wasn’t really worried about pushing the rest of the system but I was surprised at how little of the CPU was being used. I originally had built the box with 16 gig of ram but a couple sticks went bad. I never replaced them and never saw a performance issue in anything I do.
We are definitely into overkill territory with the average PC and phones today. The average person will never come close to maximizing the potential of a modern PC until something drastically changes.
Look at Win 7. 10 exists solely as a data collector for the powers that be and data marketing firms. Win 7 was far from obsolete in functionality and could have been upgraded indefinitely.
My iPhone 6s+ has a 12 mpx camera which can take 4k video.