Ken,
Windows 10 has different GOP's for Start Menu, even from Windows 8.x OS version. Check your policies for Start Menu and Desktop settings.
When I setup VDI environments for Clients, I suggest they place the VM's in a OU structure for VDI and not assign any policies. I also suggest to create a couple VDI UAT user accounts that don't have any policies and/or login scripts that will cause possible issues.
As you get the environment configured and running, then I start looking at their current GPO's and scripts to apply to the VDI OU structure. If your using UEM, this makes it much easier to manage.