See this thread for comments on touch input not working. I also have seen this behavior on Ubuntu 25.10, typically after using the stylus, then suspending, non-stylus touch no longer works. So far, I’ve found the best fix to be a simple sudo modprobe -r hid_multitouch && sudo modprobe hid_multitouch which unloads and reloads the touchscreen module in the kernel, and touch immediately works again as normal without reboot. Strangely, the touchscreen resumes working even without the reload part, but I re-enable it anyway because that is the default state on Ubuntu. You can check if the driver is loaded using sudo lsmod | grep hid and look for hid_multitouch.
I haven’t gotten comments on whether this “fix” / workaround works for others but it works well for me, so please update if it works on your system!
I believe the “hinge fix” is referring to this, which supposedly makes the on-screen keyboard behave well (on Ubuntu at least). I haven’t needed this fix personally, and seemingly only is necessary for an iio-sensor-proxy version 3.7, fixed in 3.8, details here.