I really wish all mail providers made it easy and seamless to bring your own domain (or register and manage one in the background for you, without you having to

I really wish all mail providers made it easy and seamless to bring your own domain (or register and manage one in the background for you, without you having to care for the details). Obviously giving a service-tied email domain to users is a great lock-in strategy. But it's worrying that so many people have a big part of their online identity tied to Google. (You can even sign up for a Google Account without GMail, using a third-party domain. And this is distinct from Google Workspace, or whatever they're calling it today. You get a normal, regular, personal Google Account, just without GMail and using your own non-gmail.com address.)