The Switch 2 has a new trigger for detaching Joy-Con controllers

In the video, the trigger is squeezed slightly before a final push releases it from the controller. When the Joy-Con moves away, you can also see a small cylinder retracting to the top of the controller’s interior; To me, this suggests that when you squeeze the trigger, you’re actually pushing that cylinder out to help eject the Joy-Con.

Here’s a GIF of the relevant part of the video:

The Joy-Con controllers’ removal mechanism looks similar to what was included in a 3D-printed mockup designed by accessory maker Genki Brought to CES.