Where can you find the mask?

Proprietary?

Apple is all proprietary anyways, so you shouldn’t trust them still, even if they win this court case. I recommend using Librebooted Dell OptiPlex 780’s or Dell E4300 Latitude’s with Trisquel GNU/Linux + Tor Browser with Javascript disabled if your looking for the most privacy in your internet activites. You can do what you wish with this information.

What about the PinePhone?

There is FOSS alternatives out there like Revolt or just plain old IRC which is good enough imo. The Discord bullshit is so annoying.