It isn’t just about ungoogling things though. Having a monoculture in the browser space means that if Google makes a push to favor ads, say by removing certain extension support from their browser engine that everyone uses, then the entire internet suffers. It is effectively a monopoly.
Mozilla tries really hard sometimes to be unappealing, but there is value in not just letting Google have full control over the internet.
OTA updates are not an EV thing. That is all modern cars.