I was interested in these “light” phones for a bit, but they seem a bit gimmicky and expensive. I understand not having a browser on purpose, but for communication, none of them (AFAIK) support Matrix or even XMPP (even some old feature phones had a Java Jabber client). Punkt MP02 supports Signal though.

Android phone with custom ROM (Lineage, /e/, Graphene, DivestOS…) is a possibility, and would be usable until hardware is incompatible with the phone/wifi networks.

If you have a patience of a saint, PinePhone and Librem5 are Linux phones, both in fairly early stages.

Here are a few other interesting green automotive startups that didn’t make it:

• Sono Motors’ Sion: Compact EV with solar panels, power sharing, intended to be easily repairable and included a detail manual. They had prototypes but never went to production. Now the company does niche solar applications.
• Workhorse: Series Hybrid (think Chevy Volt) Pickup truck with onboard power for tools etc (was announced around or even before Rivian). Was a very pragmatic idea IMO. Later sort-of resold to Lordstown. Now company does some other things, like drones.
• Lordstown Motors’ Endurance: EV Pickup Truck with hub motors. Made a few hundred, but they have been dragging it out long enough for Ford to make electric pickups. And the idea wasn’t too original even when it was announced.