I just bought a new android smartphone, and I have the current one since 2012 I never really needed to update the system: all the apps that I wanted just worked, and I didn't really needed new features from more recent versions of android.

It works still fine: performance is ok (maps is the only app that is a little laggy), the battery still last a full day.

But now the version of android on that phone is no longer supported by one of the app I use (banking app), so I'm forced to change it. I would have wanted it to last a few more years, but 9 years is still a long run.

I hope my new phone will last as long, and I choose it with that goal in mind (modern processor, 5G so I have it if I need, no samsung galaxy flagship that will be deprecated in a year, the possibility to install a custom OS instead of android if I need to, ...)