You can also self-host bitwarden.

Low skill users will use what comes installed on their machine, so installation quirks like that are not relevant for them. They don’t install Windows either.

Berty is being developed, and might have some promise.

They just said it can’t be turned off.

PV panels, not really, but concentrated solar can and does kill birds. Not nearly as many as coal, though, lol.

I know at least some Xiaomi phones do. At least both of the ones I’ve had in the past were pretty painless to flash.