Anyway, with the banning of TikTok it's pretty clear to me: No more global companies without hard tech. The US used to be the bastion of free global trade but they resigned. Anything that relies on things like network effect or branding will become local because countries can enforce it. If some country has the engineering capacity to build a website where people post texts and media and others like and share that media then the American version wouldn't be allowed.
Therefore, the US economy will become as powerful as having about 300M citizens, not as global power. China has huge number of citizens, they win by default as long as they can do the hard tech good enough and they apparently can do that.
US embargoes only pushed them to make their local alternatives and they made them pretty good, whatever they make they make it for over a billion people.
EU has a version of this problem, that is they don't have one large chunk of people who speak the same language and trade on the same rules. The trading on the same rules is something that EU fixed a lot but the EU is still fragmented and this makes EU companies anaemic because they can't get huge without going global. When the global trade is gone, the US will have the same issue(probably still better situation than EU but much worse than China).