Well, Netflix at least kinda makes sense from a business point of view. The reason they don’t allow watching on Linux is because some of their content providers insist on a DRM scheme which they can’t guarantee will be secure on Linux. I disagree with this on an ideological point of view, but from a business point of view it makes sense as Linux is a minority in their potential user base.

Quibi’s decision really does not make sense. It is reasonably cheap to release a viewer app or website for the mainstream browsers & OSes, and indeed if there is a good Quibi show then offering it on desktops & TVs would significantly improve the viewing experience and bring more people in.