No, I don’t think this is incredibly likely to happen. But like how some disaster prep agencies model zombie outbreaks to get people thinking about hurricanes and earthquakes, it’s a good thought experiment.
Let’s say out of the blue there’s an executive order that prevents US tech companies from servicing Canadian customers.
How hosed are you? Would you have access to backups of family photos not on Apple or Google? Does your email still work? Can you access your password manager? If you have a domain registered, is it still pointable to your servers?
I ask this because I’m trying to train myself to look for Can/EU alternatives in my tech stack for work and personal life.
It wouldn’t do anything because all those big companies operate completely separate subsidiaries in almost every country on the planet. They would just split off and continue to operate with no changes functionally.