I can go build a rocket and exit the atmosphere or travel to the arctic? Or maybe get a high power laser and do the sea level test, or telescope and a friend in a boat on the ocean? I can do none of those things as I don't have access to any resources for that and astronomical data can be interpreted mathematically both ways, though a globe model requires far fewer assumptions to work mathematically than a flat model.

I don't particularly care either way and I don't have the time or resources to test it personally; if you do than perform the tests and record your results otherwise there's nothing here scientific just conjecture based off of photo and video which can easily be explained away with far fewer assumptions than an entire flat earth model so to support it you'll need to perform the tests and follow the science. I'd love to learn a crazy truth about our world like a flat earth or whatever else but there needs to be sufficient scientific evidence that can be verified but the majority of people spreading the theory have little evidence and most people who consume it don't even verify it because most of us don't actually have access to the resources to test personally.