With commercial airlines, there’s 2+ pilots in the cockpit. So, they share flying, radio, etc responsibilities. And ATC splits various phases of flight operati

With commercial airlines, there’s 2+ pilots in the cockpit. So, they share flying, radio, etc responsibilities. And ATC splits various phases of flight operations across several radio frequencies (ground, departure, etc). And once you’ve listened to enough ATC radio, there are patterns and cues. If ATC wants to talk to somebody, they call them by flight number, etc. But, yeah, listening to a busy airport is confusing for anybody who isn’t an experienced pilot.