I never got the hang of touchscreen keyboards. My most common typo is b, v, or n instead of a space when I don't move my thumb down enough.

Also, media apps that try to cram in a million gestures on the screen. On VLC, NewPipe, mpv, the swipe to adjust volume and brightness gestures are my worst offenders. Thankfully they can be disabled.

I want an option to temporarily disable the touchscreen in general so I'm not forced to hold my devices by their amazingly thin bezels when watching a video or showing off an image/QR code. Maybe implementable as an option in the power button long-press menu.