Earlier quoted context omitted.
The top comments on that thread discuss the importance of owning your email address by way of using a custom domain, so you can move to a new providers and not worry about losing contacts or missing emails. I fully agree with that. Back in 2014, both Outlook and Gmail had free family plans with custom domain capability, but have since removed those options. Is there a good low-cost option for custom domain email in 2…
https://www.migadu.com/en/index.html
This seems to be a good solution. Have you used it yourself? How has your experience been with migadu?