It's common to see devices with touch screens expose the option to calibrate the accuracy of the touch functionality. I work on a dozen devices in my day job that all have touch screens and all have a way to calibrate them.
I'm disappointed in the accuracy of my Steam Deck's touch precision. It's most noticeable when working in a desktop environment as I'll often need to select links in a web page or items in a file browser. Scroll bars are the worst.
Is there a way I can re-calibrate the touch screen so I can get better precision out of it?