The Biden administration said it wasn't going to initiate enforcement proceedings in the last 24 hours of their administration.
It did not, nor did it have the authority to, waive the apps stores requirement under the law to do that. To remove the potential for future enforcement actions (up to 5 years in the future) punishing them for failing to comply with the law. Neither will Trump even once he is president unless and until amongst other things ByteDance signs legally binding documents that they will divest from TikTok within 90 days.
It did not, nor did it have the authority to, waive the apps stores requirement under the law to do that. To remove the potential for future enforcement actions (up to 5 years in the future) punishing them for failing to comply with the law. Neither will Trump even once he is president unless and until amongst other things ByteDance signs legally binding documents that they will divest from TikTok within 90 days.