Thread drift warning...
Unless most of the line captains at Qlink are training captains, and the 'FO' is sitting in the left hand seat, I can't understand how they get away with logging so much ICUS.
This is an old chestnut...
On a long haul flight when the PIC goes back to the bunk for a sleep and leaves FO and his offsider (FO or SO) to mind the shop who do you think is "in command"? That's right the
sleeping Captain. Where you sit has little bearing on who is in command. Take an FO undergoing line training to become a captain. The trainee is in the left but the PIC is in the right. Then on his check to line sectors, assuming the check involves some sectors with a line FO in the right seat the pilot in command is in the jump seat.
Manipulating the controls is different to being PIC.