I would love to have option to have action to list permissions that are assigned to a file via "Share" option. It seems like it is possible to reach this via Graph API already(https://docs.microsoft.com/en-us/graph/api/driveitem-list-permissions?view=graph-rest-1.0), but no action in Flow.
This will help in scenario:
I have a file I shared with users to read/write. After some time I updated this file and I want to notify all users I alreadz shared file with to do some action.
I am able to setup Flow that will "Share" file and notify. This is not option as user will have to each time fill users to share with again and again.