I think the #Switch2 joycons are going to have the ability to work as mice, maybe as a replacement for the touchscreen when the switch is docked.
Have it control an OS-level mouse cursor to emulate the touchscreen and adoption of this feature could be a breeze, and maybe even backwards-compatible with Switch 1 games!
#Nintendo
Design note: since the right joycon has its joystick lower than the left joycon's joystick, its buttons (ABXY) are well-placed for a mouse.