https://arstechnica.com/gadgets/2023/05/google-drive-gets-a-desperately-needed-spam-folder-for-shared-files/

Fifteen years after launching Google Docs and Sheets with file sharing, Google is adding what sounds like adequate safety controls to the feature. Google Drive (the file repository interface that contains your Docs, Sheets, and Slides files) is finally getting a spam folder and algorithmic spam filters, just like Gmail has. It sounds like the update will provide a way to limit Drive's unbelievably insecure behavior of allowing random people to add files to your Drive account without your consent or control.

Because Google essentially turned Drive file-sharing into email, Google Drive needs every spam control that Gmail has. Anyone with your email address can "share" a file with you, and a ton of spammers already have your email address. Previously, Drive assumed that all shared files were legitimate and wanted, with the only "control" being "security by obscurity" and hoping no one else knew your email address.