[B2B Sales Question] Cold-outreach your prospect on linked-in via video message

Hi, Video message generally have better engagement rate than pure text message i.e. it feels more personnal and it's more likely to get the appointment, result in more sales Some question 1. Are you often looking for new clients via linked-in? 2. Have you ever try cold-outreach via video message? A. If yes: Do you find it more effective than tradition text message? What tools are you using in the process of creating video messages for linked-in prospecting? B. If no: Why not? What is the factor stop you from doing that? (don't feel that effective? feel weird? time consuming to create video? don't know how to do efficiently? etc)