I just configured a Single App Mode config profile to use two iPads as
dedicated FaceTime units to contact one of our managers outside of
normal business hours. As of this writing, running 14.2 on iPad 7th gens
with this config profile, you have the ...
I was just able to get this to work. I had added a web clip into the
homescreen layout's dock, but I also had to have a separate
configuration profile for the webclip. Once both were scoped to the
target devices, it showed up in the dock.