My ICloud photos didn't transfer to google

Hello NJGW,

You came from the best resource for your issue with transferring photos from iCloud Photos to Google Photos: Transfer a copy of your iCloud Photos collection to another service

As mentioned in this resource:

If you add more photos or videos to iCloud Photos before your data transfer starts, you’ll need additional space in your Google account to complete it. If your Google account runs out of space during the transfer, not all of your items will be transferred. If you add, update, or delete content after the transfer starts, or if your images and videos are still uploading, these changes or additions might not be included in the transfer.

You’ll receive an email notification of your transfer request and another email when your transfer is complete. If you cancel your transfer request before it’s complete, and some photos or videos have already been transferred, they remain in Google Photos. You can check the status of your request at privacy.apple.com/account.

There are many reasons this process may fail, so we'd need more information to be more helpful. Do you have adequate Google storage for all of your iCloud Photos? Did you receive the email mentioned above about the transfer and when it was completed? Have you checked the status on Apple's privacy page? The more details we can understand about what's happening, the better we can assist.

Take care.

NJGW,

You may find some helpful information regarding content that didn't transfer to Google Photos near the bottom here: Transfer a copy of your iCloud Photos collection to another service - Apple Support

It's also possible that the data you were expecting isn't in a format that can be transferred or it may have been held only for a very short time and is no longer on our servers. We work hard to maintain accuracy and consistency, so the data associated with your account and our responses to data requests may change as our means of storage and collection change. Apple strives to collect and store the minimum amount of data required to provide the services you use. Learn more about Apple’s privacy policy.

Also, if you happen to have Advanced Data Protection for iCloud enabled or Access iCloud data on the web disabled then these can result in data transferring being unavailable.

If you still have issues after attempting once more then you may use this link to start a support request with Apple Support to have it investigated deeper: Get Support

Cheers.