bloombergの記事 https://www.bloomberg.com/news/articles/2020-08-07/trump-signs-tiktok-ban-as-u-s-boosts-pressure-for-sale-of-app では "The measure against WeChat blocks all transactions involving the app but it doesn’t amount to a broader ban on dealings with its owner, Tencent, according to a U.S. official." とあって、テンセント全体へのBANではないっぽいけどまぁこれからどうなるかはわからないですね