So I have a feeling that it may be impossible to properly visualise this unless I myself have a HDR screen.
If you watch that video on a mobile for example, are you still seeing the white effect? My monitor, is not HDR and to be honest, I'm not seeing anything out of the ordinary on my end.
I'm not saying that it's not an issue for you, but this seems a little similar to how bad the TTS Watermark seemed for users with HDR setups.
Can you turn off HDR and tell/show me if you experience the same thing?