So recently I’ve been seeing the trend where Android OEMs such as Google, Samsung, etc. have been extending their software release times up to like five, six, and seven years after device release. Clearly, phone hardware has gotten to the point where it can support software for that long, and computers have been in that stage for a very long time. From what I can tell, the only OEM that does this currently might be Fairphone.
Edit: The battery is the thing that goes the fastest so manufacturers could just offer new batteries and that would solve a lot of the problem.
My still new-ish phone is a pixel 4a I got used. My laptop is a 2012 model and my car from 2006.
The release cycles are insanely fast and have been for a while.
Are you me? The only difference is I just switched to a Pixel 5. My 2006 car should run for many more years, 10 at least.