I've said and I will say it again: email providers should be treated as public utility services, like telephone services and you should be able to port your e-mail address to another provider, if you'd like: https://viorel.me/2020/2020-09-25-you-should-be-able-to-lega...

I've started this process a few months ago after 14 years of gmail and it's incredibly tedious and I'm not half done yet. I am trying to move my accounts on my new e-mail address. I'm lucky I have a password manager that lists most of my accounts