@killyourfm @kurohana Probably not comfortable. I'd still prefer it over the joystick when using (for example) Smash Bros. Ultimate's stage editor, though. It could find usage in these extra features maybe.
I've also since noticed that the bumper buttons head down the side more than usual, and that the trigger buttons are pretty large for a joy-con. I feel like my index and middle fingers could rest over the bumper and trigger buttons well, respectively.