Semi circle on top left corner

I am seeing a semi circle shaped contrast pixels in top left corner of my phone. It changes color from white to black and grays depending on the color of the window.. I am not sure what is happening. Is it an issue or is there a way to make it disappear? It is not always ON.. often it disappears after sometime in a single window..

iPhone XR, iOS 14

Posted on Dec 2, 2020 9:43 AM

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Semi circle on top left corner

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