Filter by current file owner

I'd like to create a workflow for the following use-case: you create a tag "private" for a file - that file can't be accessed via shared links or internal nextcloud shares.

Rules are only applied when tag equals "private".
Currently I handle shared links with user groups --> if not usergroup "user" then fileaccess not allowed

But this won't work for internal shares. E.g. you share a folder with a nextcloud member and have some files marked as private - they can see them.

Of course you can create granular user groups.

But I think it would be way more handy to have a filter for the owner of the file. (Is owner yes/no)

Best wishes from Austria
Andreas

The issue names no files, entry points, or tests. Begin by locating the file-sharing workflow and existing tag- or group-based access filters, then determine how a current-file-owner condition should fit the proposed private-tag rules; completion would require an agreed design and coverage for shared-link and internal-share behavior.