MS 365 GCC High compatibility for Desk Booking and Logi Tune

We purchased a Dock Flex for testing Desk Booking with our system but were disheartened when we found that plugging in a laptop to book a desk was not compatible with GCC High. The Logi Tune app only has "Outlook" and "Google" as sign-in options. Per a support ticket:

I have discussed your issue with our engineering and product owners and unfortunately GCC-High is not supported within the Logitune end which will require a different authentication to be made for the tenants to work.  I would encourage you in my initial email to fill out a request in our Logitech wishlist - https://sync.logitech.com/hub/wishlist.  That's where they would consider the features and functions to be integrated in the future.  Let me know if you have any questions or concerns in the meantime as I'll be closing out this case with support.

Please add GCC High support so that we can make use of this product, as well as other customers from the rest of the defense industrial base. Thank you!