And you're all missing the loody obvious...
...Which is that in order to make a successfully viable product, you release it for a market that has the largest user-base for said product. There are more users running Windows that would consider buying something like this than there are running desktop Linux or MacOS, so it comes down to a simple question of economics. There is no sinister conspiracy to stop it being released on other OSes, merely the view to getting a higher volume of initial sales.
Unless Apple release a mac with the right specs from the get-go, or the average Linux machine stops being 2-3 generations behind current tech, those platforms will simply not be a priority due to the likelihood that they won't have the required hardware. Drivers will appear, but when, is up to them.
Until then, just be patient and wait your turn. You really want v1 of a product anyway?