Hm, can’t see the instructions you posted in that post. Did you possibly follow the instructions in “README_MOD.txt” from the 5.10.92-32-mod.V1.zip linked here?
Do see you any error message when you enable the Touch Display plugin?
Also please post the output of
cat /boot/config.txt
cat /boot/userconfig.txt
cat /var/log/Xorg.0.log