You cannot ask people to just come here and answer your question about whether your particular Apple product issue is happening to other Apple product users and asking them to post here about a similar issue, to tallying up some sort of Apple product using consensus poll numbers.
This is considered polling users and polling other users here about any type Apple product issues and encoragung them to post is not allowed in these Apple supplied user to user product technical support communities per the Community User Terms of Use Agreement we all agree to and abide by when signing up and using these Apple user to user technical support communities.
So, you cannot ask other users to post here to post if they have the same Apple product issues as you.
These are NOT what these user to user technical support communities are for.
We are all just volunteer users here and our job here is to help our fellow users with any Apple product issues they maybe having.
Not to ask users to come here a create a tally of all users having a certain problem/s with specific Apple products.
That stated.
Your iPad screen issue is not a common problem.
My family owns 7 iPads of different years and models and none have exhibited this display bright spot issue.
I suppose this can happen, but I have never experienced this in all of the years of purchasing iPads.
This can happen to any mobile touch screen device from any mobile device manufacturer. Not just Apple.
This is probably a manufacturing defect and chances are low that you will get another, replacement iPad that is goung to exhibit this exact same issue, again.
This is why I encourage all Apple product purchasers to always purchase extended AppleCare+ for their expensive Apple products to guard against and defects in manufacturing or any malfunctions or protections against user damage.
Best of Luck on the replacement iPad Pro!