With the same steps above, try each of the following parameters:
initcall_blacklist=elants_i2c_driver_init
i8042.nopnp=1
For example:
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash initcall_blacklist=elants_i2c_driver_init"
Don't forget to run
sudo update-grub
If neither of those two work, then you may get the elan touchpad working by using the higher 5.19 kernel.
Clear out grub parameters to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
sudo update-grub
Then add the tuxinvader repository:
sudo add-apt-repository ppa:tuxinvader/lts-mainline
Update and install the latest kernel:
sudo apt update && sudo apt install linux-generic-6.0
Reboot and test...