“Google Drive users are reporting that recent files stored in the cloud have suddenly disappeared, with the cloud service reverting to a storage snapshot as it was around April-May 2023.”
If you are affected and want to know more have a look at the following articles:
https://www.bbc.co.uk/news/technology-67554160
https://www.independent.co.uk/tech/google-drive-button-deleted-files-error-b2456619.html