That's not the law that passed. The law that passed is https://www.congress.gov/bill/118th-congress/house-bill/815
(lengthy law -- see DIVISION H—PROTECTING AMERICANS FROM FOREIGN ADVERSARY CONTROLLED APPLICATIONS ACT), page 62 in the PDF.
Also, both the House and the Senate have pending legislation to extend the deadline.
Also, both the House and the Senate have pending legislation to extend the deadline.
https://www.congress.gov/bill/119th-congress/house-bill/391 https://www.congress.gov/bill/119th-congress/senate-bill/103