You may be notified that you or another participant does not have the app focused during recording. Keeping the SquadCast tab active ensures the browser does not limit or restrict available resources (dropped samples/frames).
On Firefox, browser security will not allow a recording to start unless the app is focused. If a participant uses Firefox and does not have the app in focus when the recording is started, their recording will receive an additional alert, Recording Delayed, indicating that the recording was started later than the other participant recordings. Once the user focuses on the SquadCast tab, the recording will start, though the warning will remain to indicate that the file has an offset start time.