One movie that was not even mentioned: The Fifth Missile (1986).

Aboard a nuclear-armed submarine, crew members gradually begin to descend into madness. The cause: chronic inhalation of toxic paint fumes from freshly coated interior surfaces. The resulting disorientation leads them to mistake a routine drill for the outbreak of a real nuclear war.

If Down Periscope gets a honourable mention, The Fifth Missile should, too.

Good news bad news: Good: It's on YouTube in its 2-hour 50-minute entirety, free. Bad: It's in French with French subtitles and a terribly low-res picture. Fun Fact: It's a made for TV (NBC) movie. Have at it: https://youtu.be/KMWo3hUNixc?si=eUAfihWua1eNltD6