What resolution are the images coming at? The pictures that you posted are low resolution PNG files.
12MP should be 4000x3000, and you shouldn't have a moire pattern at the distance that you are shooting from.
Most of the noise comes from the propellers slicing through the air. The air pressure that creates the lift generates a tonal noise that is the "angry beehive" sound that we all know and love. Changing the angle and width of the blades can...
The pitch and volume of the sound are determined by the size and width of the propellers and how fast they are spinning. Until someone comes up with a way to keep a drone in the air without props, you are not going to see a "stealth drone".
I flew two batteries down to 24% with three minutes between flights on the Mavic 3 Pro today in central Alabama. 91 F. No problems.
That "feels like" temperature is increased above the normal dry-bulb temperature to account for the effect of...
I'm usually fine with a little flare. In your video, it's a bit jerky and is a bit distracting. That movement will make the removal challenging as you are chasing a moving target.