[ceras]

The list of core services is defined here: https://workspace.google.com/terms/user_features.html

Anything else that happens to work is an additional service.

My guess on the "may" part is that there is no guarantee it'll work, and the product teams of the non-core services won't go out of their way to make it work if it breaks. But they also won't go out of their way to turn it off, and so it will probably just keep working for some time.

[deadgiveaway]

People are having online chats with google and are being told they will not keep Photos once they cancel. So I think it's safe to assume that if there's not an official google page saying "you will not lose your photos" etc you must prepare for them to vanish either immediately or at any point in the future.

[autumnbuzz]

The official FAQ has been updated with the following:

"What happens to my additional Google services and paid content if I don’t want to pay for Google Workspace premium features?

If you don’t upgrade to a Google Workspace subscription, you will not lose access to other Google Services, including YouTube, Google Photos, and Google Play, nor paid content, including YouTube and Play Store purchases."

Source: https://support.google.com/a/answer/60217?hl=en#zippy=%2Cwha...