While we don’t have an update here for adding metadata tags to files, we are continuing to explore this as part of the future roadmap. We recently announced the ability to edit existing metadata from within Teams and will continue to invest in metadata scenarios.Nick Cloke commented
Adding metadata keyword tags to files in OneDrive would be so useful, especially used alongside the existing function to intelligently recognise the content of image files.
We agree 100% with the suggestion and are exploring ways to enable this. This represents a significant amount of engineering work hence we don’t have a schedule to share yet.