As long as they process data of European citizens it’s applicable. See all gdpr fines imposed…. Now the execution / collection would be a bitch but I could imagine à order to stop processing the data imposed to European instances…
I mean pretty crazy things can happen. See the various adequacy decisions / appeals by Mr Schrems; I cannot give guidance with a life expectancy of more than 1 year given the instability of the application of the regulation.