The opening shot of the International Space Station (ISS) shows the Russian Operating Segment (ROS) in its current configuration as of July 2021, with the Nauka module attached. However, the solar panels are missing the ISS Roll-Out Solar Arrays (iROSA), the first pair of which were installed in June 2021.
The entire volume of air in ISS would not instantly become unbreathable when the power drops. And Jo Ericsson is seen later using portable breathing gear. Retreating to the Soyuz during darkness would not be necessary.