I’ve used so called entry level phones my entire life; I can’t motivate myself to spend the amount a Fair Phone costs, although the concept is appealing and regardless the geek in me going nuts with the idea of tinkering with my phone as I do with my computer. I also prefer rugged phones, which is something most brands don’t cater to.
My current phone is an Oukitel and has already passed the three year mark, still more than enough for my needs, in great part thanks to my option to run FOSS whenever possible.
I just run Lineage os. Sure its not as secure but it supports many phones and is clean and light.
Combine it with F-droid and your golden
I doubt I can get that to run on my phone. Being a minor brand, it is as if it doesn’t exist.
What device is it? There probably is an unofficial build.
Also 3 years is not that old. My phone is from 2019 and runs Android 13 just fine (Motorola-ocean)