How to verify domain for Google API with Cloudflare Access

I have Github authentication set up for my Cloudflare Access, but I’d prefer Google.

In the OAuth client creation for Google, I’m unable to add the cloudflareaccess.com domains for the origin and callbask as they are not authorised urls.

However I cannot verify and authorise them with google as obviously, I don’t own the cloudflareaccess.com domain.

Is there a solution to this?