@climatemigrant @Gina It's a bit of a PITA to move all the accounts away from gmail(or any other email account) to a new one, but not impossible. I did the most important accounts first and then whenever I had to use some account I moved it at the same time. Kept the gmail account so nobody can take it over, but haven't used it for anything since switching.
Phone is also a Fairphone (5), but operating system is PostmarketOS (pure Linux, not for the faint of heart) so no big g account required for anything. You could flash e/OS and have android without the google ties.