Transfer domain/email from google to apple

A few months back I created a domain with Google workspace to have my own custom email address and I eventually ended up transferring it to Apple email services when they came out with the free domain. Do I still have to continue to pay Google for my custom domain even though I use iCloud‘s domain services? About once a month I get emails from Google workspace telling me to set up payment or my G Suite subscription will be canceled on February 23. If I’m now using Apple‘s iCloud services for the domain(which are free), do I have to continue to pay google, or can I ignore those emails?