I have a domain and use it with Gsuite but my domain contact email (to change anything with the registrar like moving the domain to another registrar) is still

I have a domain and use it with Gsuite but my domain contact email (to change anything with the registrar like moving the domain to another registrar) is still set to my gmail account. I did that because I thought you could get stuck in a sort of loop if you ever had problems with the registrar. You'd then not be able to potentially access your email to transfer your domain. But the same issue is possible if I lose access to my gmail.com account. How do you handle that situation or do you simply use your domain gsuite account as the admin contact with your registrar?