LinkedIn is useful for a B2B company when the people you want already pay attention there, and when you have a point of view the website can support. A post that the site contradicts is just noise.
Write from real work: how you scope, what you refuse, and the decisions buyers ask about. Do not invent client stories to fill the feed.
Point the useful posts back to a page that continues the explanation. The network is a door, not the whole office.