In order:

1) This was a rebooking in special circumstances from a DL routing. The AF phone agent described it as an "open suite" in comparison to available seating on a later flight. YMMV.

2) Almost all the middle seats in the first 4 rows were occupied on a nearly full flight. YMMV.

3) I would normally expect crew to enforce at least some priority for premium cabin customers to offboard before customers in the rear, though it is hardly always the case. Again, YMMV.