Sorry, I don’t know the answer to your question, but I can offer some possible insight into why it’s used so much.
We’re on Microsoft 365 and technically fall into the camp of “uses SharePoint”, but only for “shared network folder” usage which OneDrive seamlessly synchronizes should you dislike the web interface. We don’t actively use any other features of it.
Also worth mentioning that realtime collaboration and automatic versioning of Office documents is seamless for files on SharePoint, even if opened on a desktop on a OneDrive synchronized folder.
Files shared over Teams as well as meeting recordings are also stored on SharePoint.
My point is that SharePoint is used a lot but possibly not in the way one might have assumed.
I don’t know if self hosted SharePoint can do all this.
We’re on Microsoft 365 and technically fall into the camp of “uses SharePoint”, but only for “shared network folder” usage which OneDrive seamlessly synchronizes should you dislike the web interface. We don’t actively use any other features of it.
Also worth mentioning that realtime collaboration and automatic versioning of Office documents is seamless for files on SharePoint, even if opened on a desktop on a OneDrive synchronized folder.
Files shared over Teams as well as meeting recordings are also stored on SharePoint.
My point is that SharePoint is used a lot but possibly not in the way one might have assumed.
I don’t know if self hosted SharePoint can do all this.