The frame of the window he is leaning out of is gone. So this plane was probably receiving maintenance, guy saw the window was removed, grabbed a selfie stick, took the photo, then shopped it onto a sky background. Plane has to be still, not only because this would be extremely hard, if not physically impossible to do, but dude's hair isn't even in motion.
The cockpit windows open on either side so that the pilots can clean the windshield easily on the ground, and then also to serve as an emergency exit with a rope ladder can be dropped out
Oh yeah, I am aware. I just don't know for sure it would be impossible to overcome those forces. Most likely not, but don't know off the top of my head.
Yeah last time this came up (the image was over five years old) the conclusion was that the photo was taken on the ground and the background was replaced.
By piecing together different aspects from multiple pics - the plane, guy, stick etc. all being real but then clouds added later, covering up landing gear.