Waters’ on a sphere Earth cannot backup up and flood a spherical surface, especially if the land adjoins an ocean.
You have already had this brought up and had your ass handed to you.
Why bring it up again?
Again, you end up with the same non issue for the RE and a hypothetical FE.
All you need is more water coming in than will flow out.
Now try it with your model.
The RE is not a tiny ball being held above a massive sphere.
As such, if you want to try it with our model, with a physical model you will need to be in free-fall outside the roche limit of any significant body.
Making up a strawman to try and refute the RE does not help your case.
Large surface areas of Earths landmass that are depressed (not curved) can easily flood.
So all you are saying is that Earth isn't a perfect sphere?
If so, no one is suggesting it is.
Land which is depressed below sea level is still below sea level, even on a RE.
Again, it is the same non-issues for the RE and a hypothetical FE.