I have just come back to Channels after a hiatus. (Lost access to my cable card feature due to company changing the way their service works and they don't know how to get it working again).
Issue is that when I open the web player to a channel, the volume is very low and I have to turn my Mac Volume all the way up. That is, until I made the video window full screen and then the Volume blew me out of my chair.
I have noticed this no matter the source (IPTV and Spectrum connect). In Safari on Mac Big Sur.
This is not happening with any other web video in Safari. Any insight would be helpful.