It would be great to edit/delete database documents within the MongoDB VSCode extension, particularly when working with a test databases in Atlas.
I'm looking forward to seeing how this new extension will evolve.
This has been released today.
Now, documents there are opened from the tree view, the collection view, and resulting from a find in a MongoDB Playground are editable and the changes are persisted in MongoDB.
AdminMassimiliano (Admin, MongoDB) commented
One additional clarification: while deleting documents is not possible from the UI yet, as a workaround it's possible to do it through a Playground.