Right, but other antitrust measures (eg. DMA/DSA) haven't been about monopoly power. Europe's measures are industry-wide changes that curtails certain first-party choices. Japan's legislation works the same way. It's entirely feasible to me that this sort of act could gain traction in the US, once the lobbyists are sufficiently exhausted.

It'll be a hard fight for sure, but Epic and Spotify go for low-blows because they know Apple will cede something in the end. Their hostile behavior in France and the Netherlands did not go unnoticed.