Change the Intune Primary User – Public Preview Now Available

Scott Duffey I have a new Hybrid join machine. This device was hybrid joined by an admin from work network. Now, we want to give this device to an actual standard user, who is working from home. As its hybrid, our assumption is the end user should be able to login to the machine with his own account (similar to AAD joined machine). Now if i change primary user of the device to be the new standard user (keeping enrolled by, still in the name of admin), the standard user from home is not NOT able to login to the device., from home. Device shows error-cannot recognize the user. 

Please suggest what are advantages of changing primary user feature - Is it just for inventory purpose, or really we are making end user to be able to login to the device, after admin enrolls it ?