Here's 1,000 miles of distance viewed from an airplane, using an infrared camera.
That's around 1/4 of the supposed radius of our globe.
Zero curvature observed.
https://blossom.primal.net/2bc8fcff0...
But when you are 35k feet in the air you can see tremendously further because of your vantage point. I didn’t watch the full video but I hope the experiment takes that into account.