If cornering 80% of the market is so terrible, the EU should make it illegal to sell the Nth Android phone that pushes past 79%, and/or make it illegal for the customer to buy such a phone.
The absurdity of such a proposed law should make it obvious that Google is doing nothing wrong by selling popular devices with a certain operating system.
The absurdity of such a proposed law should make it obvious that Google is doing nothing wrong by selling popular devices with a certain operating system.