Bert,
I sign on each time, and then use my chromebook as my simulated desktop with VNC viewer made for Chrome Enterprise version which is a minimal yearly fee, that I use the intranet to access my Updox and AC in the exam room. I use the chrome browser and works flawlessly this way. I don't have any employees on my chromebook but at home we have several (as I have upgraded to new chromebooks over the years each member of the family gets one LOL) but on any one of the chromebook there can be multiple users with their own specific sign on, and each family member can easily sign on to any one of the dhromebooks and have their specific user identity easily accessible. Thanks to our late Indy, in Laramie Wyoming at the conference there many years ago is where I learned about the chromebook, and still one of the best additions to the practice and personal devices for family and myself.
