Thanks, although much to my dismay, it's very clear now!

On this type of itinerary, how does standby work? For example if I show up to the airport at TPE, with a married segment ticket no stopover allowed, will the airline wait until the LAX flight is clear before letting me board the TPE-HKG flight? Or is it just not possible?

If it is possible, when I fly HKG-TPE try to turnaround on the TPE-HKG-LAX can I standby airside, or will I have to clear immigration in TPE and standby landside?