Yes, the cabin crew wears masks all the time.
I flew to Brussels yesterday and the flight load was 50-70%
No queue for the runway which I kind of liked.
I took some preventive measures, like cleaned my seat with 75% alcohol, washed my hands properly (of course) and handled toilet doors and overhead luggage bins with tissue paper. Avoid touching anything and use hand sanitizers roughly once every hour.
Safe travels!
