Folding Screen -- Lines of Failing Pixels

Has anyone found what is causing the common issue of lines of pixels failing on the folding screen?

For example -- I am on my second Fold 4. The previous Fold 4 and this one has the same issue. A column of discolored pixels running the entire length of the folding screen's crease; and a row of bright white pixels at the very top of the right side of folding screen (running from crease, through camera area, to right side bezel).

Sidenote: I am severely disappointed in Samsung's warranty. A reason for choosing this phone was the relief of it having a warranty. If there is even a scuff on the paint -- they deny coverage. It is borderline criminal. These devices are carried with us all day, every day -- a scuff/scratch/scrape should be normal wear. If my car gets a scratch, the manufacturer does not deny warranty. (end rant)