This is completely false.
This bill
DOES NOT empower the Executive Branch to define “foreign adversary” and prohibit any apps owned by its own definition of “foreign adversary.” The bill defines a foreign adversary-controlled application as subject to the control of China, Russia, Iran, or North Korea
ONLY. This is not a blank check for the Biden administration, or future administrations, to restrict whatever apps it wants.
Read the bill. It's called the Protecting Americans from Foreign Adversary Controlled Applications Act.
Clause 4 says:
(4) FOREIGN ADVERSARY COUNTRY.—The term “foreign adversary country” means a country specified in section 4872(d)(2) of title 10, United States Code.
That section SPECIFIES "foreign adversary country" as Russia, North Korea, Iran and China only.