Re-visiting this thread as we are finally returning to Taiwan this November after being absent since the virus started. I would like to apply for E-Gate service, but unsure of the new procedures. I have a US and Canadian passport, with Nexus - my Nexus includes GE, but I don't have a separate GE card.

1. do I still need to show a frequency of travel to Taiwan to apply?
2. how can I apply with my Nexus card, or do I need to print out something that shows I also have Global Entry included?
3. do I need to apply for a separate GE membership and card to apply for Taiwan E-gate?

I have APEC so I get line priority anyway, but if the process isn't too complicated, I would rather add e-gate service so I can swipe in and out quickly as this trip will include an entry into Taiwan, then a departure, then a re-entry, then another departure the following morning.