The looming TikTok ban presents a multibillion-dollar headache for app store operators Apple and Google – as well as other Big Tech giants like Microsoft and Amazon that count its Chinese parent company ByteDance as a business partner.The Biden administration effectively punted enforcement of the law, which is set to take effect on Sunday, to President-elect Donald Trump, who formally takes office the next day and has vowed to save the app. On Friday, the Supreme Court rejected TikTok’s appeal and upheld th ...