I've come to realize the same thing. I was found the "boomer" thing to look for restaurants on Google Maps, then I realized younger people use Tiktok for this now. And here I thought Tiktok was for just for memes and funny videos.
In China, there's WeChat, which is basically the everything app, from chat, to food delivery, to ecommerce, payment, and even navigation. Normally, that would violate App Store guidelines, but they are dominant enough in the Chinese market that Apple caved in and granted them special permissions.
Don't forget indoctrination and demoralization for thought reform as well.
Beams marxist reeducation right into every teen's life in subtle ways.
There's good reason its being considered a national security threat when all user data is being shipped through China, and their businesses are a government partnership.
Political Warfare and Subversion are real and difficult issues to deal with given our 'open' society.