

As others say, buy a domain so it’s easier in the future.
But one thing what helped me was relay email addresses. Whether that’s Addy, Simplelogin (now owned by proton so probably not), Firefox Relay, or another. When you sign up to shit, buy something, etc, use one of these email addresses. When you eventually move to your new email address, you can cutover all those accounts to the new one by changing the settings for where it forwards email to.
You can also use your own domain with a catchall and make up your own whatever@yourdomain if you’re ready for that.




Yeah I don’t think people defederate based on what happens on your own instance, only what flows to other instances.