This might be a stupid question, but I’m only so-so at wireguard. Do you experience that kind of loss using WG at home, on wifi, between your phone and server?

I hate this comparison. I’ve seen it so many times in the last four years or so, but I feel like it always adds more confusion. I don’t think most people know how email servers work. I run a server and have messed with Postfix, and I don’t have a good grasp on it myself. I’m not sure how to improve it but there has to be something better than that.

What is a king to a god?

I feel like this option is honestly worse for most people. You have the new security problem of having to transfer the file everywhere, but now the huge inconvenience of potentially losing it or not having it on a new device.

I do not believe either mastodon or lemmy federate your email address at all. Only the server you join has that information. You might have to worry if you have signed up to an uncrupulous instance. That instance admin could sell your email, I guess. They would have access to any email you gave them, so changing it would probably not help. I think the problem is a little overstated, honestly.