chrome extension to update the document title (and window title) based on microphone mute/unmute events (eg. ctrl+d in browser)
this brings info to the desktop environment level where it can be parsed
eg. swaywm
$ swaymsg -t get_tree | jq -r '.. | select(.pid?) | .name | capture("meet mic (?<status>on|off)") | "mic is \(.status)"'
mic is on
now it can be put in something like swaybar