That is true but they are also some of the most vocal advocates of certain systems. It is a king of trust errotion that doesnt show up for a very long time but by the time it does it is too late to reverse.

Tge flipside of that is that Google and Apple have no viable alternatives. It would take years to build what they have.

It took Huawei about 5 years with Harmony OS to do it but odds if that making it far out side of China is limited.