LinkedIn content can be uploaded by pasting in the URL as a Coverage Link to your report. We'll grab a screenshot of the post.

Unfortunately, LinkedIn depreciated their social share data feature some time ago (back in 2018) so we're no longer able to pull share data back from the post, but it is possible to add in your own data manually as custom metrics.

This may change in future, but for now we'll be unable to gather this information. It's likely that no tool will be able to give access to this number anymore.