'Shadow gradient over media controls on youtube

Does anyone know what is causing the gradient over YouTube controls on Edge / Chrome? doesn't seem to occur on Firefox, only appears when media controls are present. I did notice when i enable HDR it makes it less noticeable. Is there anyway to completely remove it? Examples below.

HDR disabled: https://imgur.com/a/HYWAy5h

With hdr on: https://imgur.com/a/ij5VoYZ

both are pretty bad compared to Firefox: https://imgur.com/a/p20K8CR

Thanks for any help.



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