Earlier quoted context omitted.
Use a custom domain and don't use google for email. And if you do use your gmail address just forward it and start to transition to something else. With time everything of importance has been transferred.
How do you even pull away from a Gmail address? I'm nearly twenty years into that service. Getting banned would be absolutely devastating...
I had my Gmail for almost 20 years and made the transition. It's annoying and time consuming but I think well worth it. I bought a domain and host it on iCloud. It's like $3/month for 6 email addresses (you can use it with the family). That includes a little cloud data and other services like hidden email addresses. DNS is handled by Cloudflare for free. Then start moving each service/login to the new email address. Every time you log into something, change the email address. I took the opportunity to update passwords and passkeys too, using Vaultwarden. I was lazy and had used similar passwords for a lot of services. Passwords are all long and unique now.
Now, even if Apple bans me, I can move my host within minutes. I never lose access to my email domain. It's much more professional and I can do catch-all. E.g. netflix@[domain.com]. This way I can see who sells my email address to spammers and block it.