Yes, that key is screwed because it's lost, stolen, at the bottom of the river, etc. But this is when you generate a new key and store that pubkey at your PDS s

Yes, that key is screwed because it's lost, stolen, at the bottom of the river, etc. But this is when you generate a new key and store that pubkey at your PDS so the Appview can find and index your new posts from your new phone. It's the same thing that happens when I reinstall Debian on my Thinkpad and upload a new ed25519 pubkey to Github so I can push again. Edit: or we could backup the key.