I just bought a 3+, shipped to Australia via a friend in Austria. I'm glad to hear that your 2 has lasted, albeit the phone I replaced was also about 5 years old (a Samsung, from the days when those had replaceable batteries and uSD slots. And on battery number three, although I am pretty sure battery number two was a fake because it never worked properly)
I'd love to run a more open software stack, but even just Linux on the top layer would mean not running the apps I need to get through daily life... it's why I had to retire my perfectly working Android 3 phone, so many things stopped working (the Covid tracking app FFS). But under linux are the various radio, camera, wifi etc modules and a lot of those have their own firmware. Pinephone has really struggled with that.