I’ve been a Fastmail user for years, having left Gmail. It works great and have nothing be but praise for them. I use my own domain with them so if I decide to leave it’s not an issue worrying about updating people with my new email.
replies(8):
(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.)