Earlier quoted context omitted.
I wouldn't worry about that. You're ignoring politics, and what this actually is. If the EU had a real problem with addictive designs and social media the time to move against it was of course 10+ years ago. They do not intend, not even remotely, to sabotage the profit machines that those companies are, they just want political weapons against the companies. The intention here is not to cure addiction, destroy profit…
One of the best replies on hackernews in years. Hear. Hear. The EU realized they can extort the US big tech. The EU will now just focus on laws and taxing (the war in Ukraine isn't their problem). And frankly, we should just ignore EU laws in the US.
Companies that try to do business in the EU have to follow EU laws because the EU has something that can be used as leverage to make them comply. But if a US company doesn't have any EU presence, there's no need to obey EU laws.