Touchscreen going 'cloudy' at the edges

Hi All, Has this ever been seen before? I have searched the forum but can’t find anything similar:
As you can see from the photos, the edges of the touchscreen seem to be failing, taking on a random translucent appearance.
I have had the machine (A350) over 2 years, but after the initial vase print and wooden box I didn’t use it for almost 2 years. Since then, I have CNC’d the phone holder and done a little bit of my own 3DP, but I noticed the problem before all my recent 3DPrinting.
It still has the original protector on the screen and you can see I lifted the protector just to check it wasn’t the protector itself (hence the bubbles near the bottom).

I can’t believe I am the only one to have seen this, especially on a little-used machine.
Support don’t have an answer for this and have shown no interest in the cause.

I don’t have a protector on my screen… you sure it’s not that?

Thanks for your reply; I lifted a portion of the screen protector and the cloudiness is definitely under the glass.

Can we see?