In terms of (4) Why would the apple watch want to have to build and maintain their apple watch on the google platform. Its funny that a company not wanting to

In terms of (4) Why would the apple watch want to have to build and maintain their apple watch on the google platform. Its funny that a company not wanting to work on another platform (probably due to business costs of doing that) is being considered anti-competitive. Making it difficult for 3rd party .. sure but trying to force apple to have their hardware work on other platforms is a business decision .