Linux does support but if an obscure combination of components doesn't work no one will go hunt down Linux developers but Microsoft will be required to provide

Linux does support but if an obscure combination of components doesn't work no one will go hunt down Linux developers but Microsoft will be required to provide support either way. So yes it's not a matter of not being able to support it today but a case of being able to cheaply support older hardware at an acceptable level that a commercial vendor such as Microsoft is supposed to.