Secret key partly saved on login page

A quick followup question. I have turned of iCloud Keychain on my Mac and iOS device to stop my secret key from being synced to my Apple account, but to do this for Android devices, do I need to completely turn off the device backup to my Google account (I'm only using the built in backup solution that Google provides) for the whole phone to keep it from syncing the secret key to the Google account? If so, is there any way to sync everything except the 1Password data and/or 1Password secret key? I rather setup a new Android with the secret key by myself than have the convenience of having it backed up at Google and Apple.