Sounds like a plan @enough-dream-92022.
My thoughts on the second point here are more in line with picking out a section and then using that as the LinkedIn article instead of simply cutting and uploading half of the piece.
For example, if you're writing an ultimate guide on editing, you could pick a section that focuses solely on proofreading with AI tools (Grammarly and the likes) and then publish it on LinkedIn as an article. That way, it can stand by itself as a relatively complete body of information.
Regardless, thanks for the insights!