I use a trackball for my laptop and desktop PC for over 20 years now and highly recommend it. I have one with the ball with the ball under the thumb instead of the middle like this one has though.

It works not just for light gaming, but also "heavy" gaming, like shooters. Just move your thumb instead of your whole arm. Works perfectly well.

And that's not even mentioning how relaxing it is. You can put the trackball anywhere. I like to stretch my arms sometimes and put the trackball away from me or lean back and put it on my lap. It works on any surface.

Back when I was a wee lad, around 1993 or so I’d guess, my uncle’s work laptop had a trackball that plugged into a special port on the side of it. Even though laptops of the time weren’t particularly good for, well, using on your lap, it was an exceptionally nice way to be able to use a mouse in a limited amount of table space.

Edit: thank you Reddit! https://www.reddit.com/r/Trackballs/s/Lw3QQG9IY8

Which model do you use? Looking at the MX Ergo.