I have both Airpods and AirPods Pro.
To answer the questions:
1. No they don't fall off. I never had a single event of even the basic Airpods fall off during exercise, running or other forms of physical activity.
2. You pick up the call on the EarPods itself. I use the Airpods at home and the Pro outdoors, commute, gym etc. It has a long press to change from noise cancellation to transparency so its just easy to go from complete isolation to engaging in conversation without having to take it out and putting it in the case.
To answer the questions:
1. No they don't fall off. I never had a single event of even the basic Airpods fall off during exercise, running or other forms of physical activity.
2. You pick up the call on the EarPods itself. I use the Airpods at home and the Pro outdoors, commute, gym etc. It has a long press to change from noise cancellation to transparency so its just easy to go from complete isolation to engaging in conversation without having to take it out and putting it in the case.