Hi nev and welcome to the forum. Can I ask that you edit your forum profile to state that you are using "Lite". That will then help us help you in the future.
I found a number of threads here when seraching for "HP touchscreen", including Does anyone know how i can get touchscreen to work in zorin lite?
I am not sure if anyone has found a soloution though.
You can also widen search on internet, using "HP touchscreen Ubuntu 20.04" and see what comes up.