I suggest to have this feature disable or remove in group setting for desk and make it available either per Country or for Global (similar with meeting room). This feature should only to be shown for that specific location or Country if it is enabled. The current setting creates confusion from the end user.
Example: If i enabled 'Show booking grid to users' to one of the group for Dubai, the booking grid will not only be enabled and shown to Dubai but also for other countries showing that group in Dubai, which that will look like their default location.
For meeting room, users normally use booking grid to manage their bookings. It would also be great if this would be the same for desk.