Running Monterey 12.6 on M2 Macbook Air

Linearmouse shows trackpad as "unknown" and will not auto-switch to trackpad when in use (even when auto-switch is checked).

Changing acceleration works but changing speed does nothing.

Console error logged as "Unable to serialize CFObject: Property list invalid for format: 200 (property lists cannot contain objects of type 'CFNull')" when changing settings.

Re-adding accessibility options does not work
Re-installing does not work