For the general public yes what you say is true. No aerosol transmission (airborne). Droplet transmission occurs when a person is in in close contact (within 1 m) with someone who has respiratory symptoms. So 1.5m rule to provide a safety margin. Plus hand-washing etc to prevent transmission from hands touching those droplets and then touching ones moth etc.
However for medical staff treating CV 19 patients some procedures such as intubation are thought to create aerosols and so special precautions need to be followed, both for the staff treating the patient and in the type of room that the patient is in when those procedures are done.
This is also why relatives of patients who have undergone these processes are not allowed to be in the same room as them including if they die.
You can read more here:
Scientific brief
www.who.int