Too many organizations settle for either SharePoint, or a file storage system they built twenty years ago or cobbled together on top of some other type of software. All of these approaches are a missed opportunity, and probably costing you more than you think.
The word intranet can mean a lot of different things to different people, and as a result, modern intranet serve a wide variety of business functions at different organizations. For many companies who have only ever had legacy intranet, it can be hard to visualize how upgrading to a more modern intranet can serve their business.
When “intranet” becomes a dirty word in your organization, people either have to jump through a bunch of hoops and experience frustration whenever they need to find files and information, or they find their own ad hoc solutions at the team level. Either way, it’s a bad experience that leaves people annoyed and wastes their time. It also likely affects knowledge retention and transfer, as most of that information disappears to somewhere out of your control, and people in different departments or offices do duplicate work, not realizing that someone else in the company has relevant experience they could draw from.