Can you elaborate a bit more? If I create a passkey on https://passkeys.io on my Mac, then store the passkey in a password manager like Bitwarden, I can log into that site on my phone. I was kinda under the impression that Bitwarden stored the private key on their servers, so if their site gets hacked, then the attacker has access to my passkey.io account?

It feels a bit different to me. Tesla hugely invested in their own charging network, while everyone else let EA do it for them. Tesla could have kept their network private to sell more vehicles. As for the exclusive Rivian chargers…I’ve never seen one, but the nearest one to me is about 300 miles away.