Yes, public displays of affection are generally discouraged in Pakistan. It is more respectful to keep such behavior private.
Cultural expectations
Public behavior is expected to remain modest, and visible affection between couples is not commonly accepted.
Urban vs rural differences
Cities may be slightly more relaxed, but rural areas tend to have stricter social expectations.
What is acceptable
Discreet behavior is advised. Observing local norms can help you adjust appropriately.
Common misunderstanding
Behavior that is normal elsewhere may not be acceptable in Pakistan. Keeping interactions private is considered respectful.