Basically the title.
And how important do you really think Android version updates are. I don't use my phone for a lot more than podcasts, instant messaging, and occasional browsing on Firefox mostly with JS disabled and ad-block on. I have a 3 year old Android 7 device that looks and works just fine and see no reason to upgrade
I used to be one of those "Get a new phone every year with the upgrade" kinds of people but I've been very happy with my One plus 7 for a while now, pretty much any phone made in the past couple years has enough decent specs that there's no reason to really upgrade. Maybe replace the battery every couple years and you are good.