There is no “notch” on the A220. They are fluid, full motion similar to Boeing. The 777 had a similar issue. A new 777 captain that came off of the 767 had a near catastrophic event. To engage the A/T on the 767, they push an EPR button for the prescribed TO power. He pushed AP engage right next to it. While the 777 didn’t have the EPR button, the 777’s buttons looked similar…OLD HABITS. When the FO, who was flying, tried to rotate, the aircraft went…”Uh…NO!” The nose wheel actually flew over the dip in the runway! The FO, seeing the construction trucks at the other end getting larger by the split second yanked it off the ground. The AP disengaged and they shot up like having been catapulted off of an aircraft carrier. British Airways had the same thing but Boeing ignored it until the US carrier had the event and threatened to ground its 777’s at Boeing’s expense!