No Android Share for Files shared by other NC Users

When I browse my folders and files in the Nextcloud android client, I see the Share icon next to each element which opens Andorids native share feature (e.g. send per mail, Facebook, Instagram, etc.)

If the element is not mine, but shared from an other Nextcloud user, I see the User icon instead of the share icon and can’t share it to an other app.

I have all permission on that share. Is there some limitation or is this just a missing feature?