You may be hearing this in some of the sessions but just wanted to put it out there as I see sometimes people don't realize:
1.when you edit a post in LinkedIn it kind of kills it - If you don't have a lot of engagement on it you are better off deleting and then posting it fresh with what ever content you did want.
- When you put a link in the post your post is less likely to show up in people's feeds - LI wants people to stay on the platform, not be directed away. You can simply say "Link in the comments" and put the link in there.