I keep my 8W stereo HDMI-attached speakers (built into an Asus 28" 4K monitor) at 100% and my Windows 10 Volume slider at 50% normally. I thought this would help level the sound on Youtube, if not anything else.

I've had this extension installed for almost two years and forgot about it because it didn't change anything. In that time I still constantly encounter videos where I can't turn the volume up enough to hear, and more often videos that come obnoxiously loud at only 1/4th the volume on the Windows taskbar Volume slider.

Obviously I must be doing something wrong, such as perhaps misinterpreting the purpose of this extension.