Chinese tech giant Huawei has developed its own operating system as a 'plan B'

Actually Huawei is doing research in micro-kernel based OSes.

https://archive.fosdem.org/2018/schedule/event/microkernel_e...

https://fosdem.org/2019/schedule/event/hardware_software_co_...

How much it relates to this news, no idea.

I find it a bit curious that they are not using an effort such as lineageOS. In fact companies that don't want to rely on Google, why don't they rally behind an effort like that?

No mention of Linux in the article, but if I was trying to urgently replace Windows and android I would consider using something like Ubuntu mobile as a starting point for my plan.

If they released it with an open source license, it would increase my confidence in Huawei considerably.