Since every app that I pay to use that has an Android version is subscription based, yes.
> and did your photos off your Google drive transfer to your iCloud, or vice-versa?
Since I can download the Google Drive app on my iPhone and it shows up right next to iCloud Drive on the Files app and in File dialogs. Yes.
As far as photos from iCloud to Google, just download Google Photos on your iPhone and sync your photos.
Anything else?
That's not a direct transfer, it's a workaround which requires you to have free storage on your phone greater than the amount of photos you have.
Since every app that I pay to use that has an Android version is subscription based, yes.
> and did your photos off your Google drive transfer to your iCloud, or vice-versa?
Since I can download the Google Drive app on my iPhone and it shows up right next to iCloud Drive on the Files app and in File dialogs. Yes.
As far as photos from iCloud to Google, just download Google Photos on your iPhone and sync your photos.
Anything else?