Documents & Knowledge
Every workspace lists what's indexed for AI retrieval, with status. There's no upload screen: attaching a file to a chat message is the upload.
The Knowledge screen
Every workspace has a Knowledge screen listing everything indexed for AI retrieval — your uploaded documents and the transcript of every recorded meeting in that workspace, each showing its indexing status.
Attaching is uploading
There's no separate upload screen. Attaching a file to a chat message is the upload.