Your drive to verify must be very low then. There are hundreds of small logic reasonings or even experiments with which you can easily prove that a flat earth model is at least very complicated or even impossible.
Explaining Moon phases gets very complicated in any flat earth model. With binoculars you can see the shadows of craters on the moon's terminator. Or the phases of Venus whereas Mars doesn't have any.
Timezones are ridiculously hard to explain on a flat earth.
A proper theory must explain all of them and no flat earth model can do that. A round Earth OTOH easily does.
None of that is an actual verification of round (or kinda potato shaped) Earth. You are just choosing to not think too deeply about it, essentially parroting things, just like I am.
Disproving flat Earth does not verify round Earth, after all. And all your listed refutations of flat Earth do not really disprove anything, either. They might, if you do the actual work, but you did not, choosing to just parrot someone that did put in the work.
Which was my point. It is much easier to speak vaguely and reference things than it is to actual prove something rigorously.