Outlook/Proton is easier because they don't ask for phone number while GMail does. (At least in my country). There's also number of throwaway temp mail provide

Outlook/Proton is easier because they don't ask for phone number while GMail does. (At least in my country). There's also number of throwaway temp mail providers, and 33mail (If I recall correctly, gives a subdomain and all emails to that domain get forwarded to your original email.).