I always used to eat my lunch behind my desk and watch movies simultaneously from 12:50 TO 13:30 pm. It was OK until this behavior gradually spread to my coworkers, and after a while all employees watched movies during their lunch time. Two days ago our manager announced that during lunch time all monitors should be turned off and using mobile is prohibited .
I'm so bored with this new rule and want to know is this rule common in other companies? If this is a time to break off from work and get a little rest, don't I deserve to decide how to rest or break?
How can I protest against this rule?