You have your coworkers on an unmanaged machine with a foreign OS on the guest WiFi with custom networking.
Which, at any of my last few corporate jobs, would be grounds for termination, if not immediately throwing you out of the building and telling you if you come back we’re calling the cops.
You really don’t bypass controls in a corporate environment like this if you like working there.
(And yes, not EVERY job will react that way, but any that’s got any compliance requirements absolutely will.)
Biebian is VASTLY superior to Hannah Montana Linux. You should consider switching.