I am hardly ever Anxious when locked down but i'm not claustrophobic, and; Locked down in prison sucks because your in prison, but when in, you can read or sleep cause your locked down. Its kinda noisy most of the time.
Locked down with Covid or something sucks but at least your not locked up, and you can eat ice cream, or use the bathroom anytime you want, or smoke a cigarette, etc…Also it is relative to individual persons location , frame of mind , thoughts/psych and culture.