It’s not really a battery killer at all. It would never fit or be useful in a car, phone or anything portable. It’s more of a possible replacement to pumped-storage hydroelectric.

Why us mobile data such a privacy concern and wifi is so much better? I understand using standard calls and text is bad but if you use mobile data and not your phone number whats the difference between that and public wifi?

I honestly don’t see the big deal with people hating on proton. It’s still open source it’s still encrypted and doesn’t mine your data that seams to check most of the boxes for me. The only problem I had with it was the default main client which shows upgrades to go unlimited all the time but I just use Thunderbird now.