Does your PC have hardware-accelerated AV1 video decoding enabled in Firefox? And does your Mac? (you can check in about:support) My PC plays videos just fine,

Does your PC have hardware-accelerated AV1 video decoding enabled in Firefox? And does your Mac? (you can check in about:support) My PC plays videos just fine, but it started sucking down 50W more than it used to, and AV1 was the culprit. Now that I've switched YT back to hardware-accelerated h264 playback, everything is back to normal.