I've just had the above firmware update via windows update on Windows 11 to my Galaxy Book.
Whilst it appears to have added support for HDR videos, it has caused my wifi to reduce to only 15mps max and pings are between 10-100ms. High quality youtube videos are now buffering. I've done the obvious trouble shooting - rebooting my router, reinstalling the drivers, etc. But still the same.
Anyone else experienced this?