GOS is limited by upstream support. Newer devices can be up to 6 years.

The Internet is a bunch of Autonomous Systems running open protocols like BGP. Packets have no passports.

In Germany they won't cut off your Internet connection. They'll send you a cease and desist for a few thousand euros.

So what's left? Jabber?

Matrix (Element), Signal, Telegram. Other stuff probably requires Google services which I don't use on the tablet. Phone has Google services, but I don't really use it for messaging other than Signal.

I'm on GrapheneOS on tablet/phone for time being, but I'm fine going back to a dumphone and a Linux or BSD tablet or convertible.

The Keeling Curve and lately the isotopic composition is telling you everything you need to know. The only "good" news is that we're at the extraction limit.

Their ChromeOS tablets suck as well. The only reason for me to buy Google hardware is to put GrapheneOS on it.

GrapheneOS is the most secure mobile OS and your model is not affected. I've got a 7a myself.

Supercentenarians show us up to 120 years at a high quality of life (everything else is being a dick) is feasible in theory.

That point was passed decades ago.

We are at over +1.5 if you ignore sliding decade average and multiple factors make +3 by 2050 reasonably likely. We got there because we erred on the side of climate sensitivity due to people like you, who told us disregard the "alarmists" and tnat we have plenty of time to act. Well, it looks like the "alarmists" were right.