I want to push back on this part:

Only if Microsoft acquires a major CPU chipmaker.

In the USA, and other parts of the world, a small number of Billionaires are buying up everything. A small number of wealthy people could each own a part of the supply chain and for it on the vast majority.

For extra enforcement, add in a legal or cultural push for reporting or shunning violators through the media companies owned by that same group.