gmail backup is what i need. turn outlook off - don't use outlook
back up gmail to icloud
You can't store Gmail in iCloud. If you're on an iPhone, iPad, iPod touch, or Mac, you can sign into your Google account in the Mail app and access your Mail there, but it won't be stored in iCloud; Google will have your email.
Add or remove email accounts in Mail on Mac - Apple Support
If you're using a Windows PC, you can access your Gmail using a browser like Edge or Chrome.