They relentlessly try to coerce us into using their browser, messaging, and Bing using windows. They undermine developers of apps like Firefox who try to sidestep their restrictions. They clearly need to be reined in
How they pick cases is mysterious to me. I would go after them about Edge first, where they're doing real harm to Firefox, and Bing. Both of these are also pushed through Office. But maybe there are chat apps based in Europe that provide them jurisdiction, I don't know enough about it.