The buttons in question can be found on the Joy-Con controller grip that's included as standard with all Nintendo Switch 2 ...

Nintendo has taken the wraps off a Pro Controller to go along with the newly detailed Switch 2. It’s been upgraded with two new “GL” and “GR” buttons on the rear grips that can be used to remap other ...

Introducing the Nintendo Switch 2 Pro Controller. This thing has all the trappings of the original but also includes new buttons and audio functionality. Source: Nintendo During the special ...