- open /etc/default/grub
- add GRUB_CMDLINE_LINUX="i8042.nopnp=1 pci=nocrs"
- update with sudo update-grub
- reboot
This didn't work for me despite everyone else seeming to have success.
What did work was updating the kernel to 5.13.0-21-generic along with the listed steps.
Just hoping this might help someone facing the same issue.