I can't believe in that blog they use a simulated video. How hard is it Microsoft to have literally someone talking in a mic connected to two different laptops seriously.
Can a bluetooth mic connect wideband to one laptop and normal to another at the same time? Regardless, the simulation is very accurate IME. It is, after all, all digital anyways.
It’s that when you have legal agreements with guilds and unions, even produced promotional material can be considered a production requiring minimum staff (I.e. makeup, camera technician, etc.) On productions, any person wearing multiple hats is tightly controlled.
A cartoon I watched growing up ran into this when they needed to insert live action, so they deliberately recorded at 1 FPS for that episode to make it ineligible for budget reasons (https://phineasandferb.fandom.com/wiki/Tri-Stone_Area).
If you’re ever wondering why a company can’t do something simple and obvious, it’s probably due to a legal agreement.
This can already be done with LE audio, support is coming slowly.