I think if you zoom in whilst showing a corner of the viewport it works because ...

brentcetinich on Feb 5, 2022 | parent | context | favorite | on: Trying to get past the 500 nits limit of the MacBo...

I think if you zoom in whilst showing a corner of the viewport it works because the hdr videos are still in play but if you zoom so the corners are not visible it will fade out