when you get a wide view you can see the curve just like in real life.
No. When you get a wide view you typically get distortion which results in a curve. Sometimes the curve is down, sometimes it is up.
it really isn't below limits of human perception, you may think that a curve should be more visible, but the earth is huge, and that is why its extremely slight but still visible
It really is. You are trying to view a circle of radius ~ 5 km from a few m up.
That isn't going to produce a notiable curve.
Yes, Earth is huge. That is the point. It means the curve is not noticeable because you are looking at it from the wrong angle.
what you are doing, is denying the fact that you see it, you don't want to see it, so you don't see it, but when you allow yourself to see it, you can pretty easily spot that its definately not straight.
Have you considered that it might be the opposite?
You see it because you want to.
Then go and draw a straight line right next to it and prove me that i was just imagining things.
It has already been explained why your image is useless.
It is multiple images stitched together.
If you actually drew the straight line you would see the horizon appears to start at one point, drops down, jumps up on the other side of the sun and continues going down.
The glare from the sun also makes it quite difficult to see the horizon near there.
If you like, you can use this picture:

It doesn't have those issues of being stitched together or the sun.
But it curves the wrong way.
So are you sure that curve is real?
If it is, that means Earth is the wrong way around.