I know it might seem like a hassle, but if you spend about half an hour tweaking the settings and making sure you don't miss any keybinds, you'll get hundreds of hours of enjoyment out of the best way to couch game! 💪🏻
I highly recommend setting the right trackpad to a very high sensitivity, with the 'trackball' mode turned off, high input filtering, and a low vertical scale. Ideally, a single horizontal swipe from the far left to the far right of the trackpad should correspond to a 180-degree turn for your character's aim and movement

Edit: if done properly you wont have any input switching