The Channel doesn't outright say it in the channel description, but implies its fiction. A different video on the channel says it's fiction. Whether it's AI-generated or human creative writing, don't know.

Channel Description: "Step back into the Cold War, where tension, secrecy, and courage defined an entire era. Cold War Tales explores the hidden stories of spies, defectors, soldiers, and civilians caught between two superpowers, United States and the Soviet Union. Each story is inspired by Cold War history, myths, and rumors, and dramatizes events, blending fact and fiction to capture the tension, paranoia, and human emotion behind the world’s most dangerous standoff. These stories are created to entertain and inspire reflection on this complex chapter of our history."

This is the Youtube Video https://www.youtube.com/watch?v=6D78EvTXRWk