I use Google Domains with an isolated single-purpose Google account. Emails from it are forwarded to my main account. It is easily the best domain registrar out there IMO.
The solution is to register your domain (at least) with a provider that doesn't have so much insight into their users.
Again, this applies not only to Google, but also to Amazon and others. It's really a problem with centralized reputation.
Cloudflare offers everything they do. It's cloudflare's core business and I don't have to deal with Google's tiny attention span.
I understand that they don't offer email hosting but do let you configure email forwarding. If I do that and forward my me@example.com email to something like GMail, Apple Mail, Hotmail, etc..., do my replies look like they come from me@example.com or do they come from the account the email was forwarded to?
Edit: I think I found the answer[1]. Replies come from the account the email was forwarded to, not me@example.com. That seems pretty useless for anything but receive-only accounts.
[1]: https://community.cloudflare.com/t/replying-from-new-custom-...
Probably best to use a service from a company primarily in the business of offering paid services.