Hi Andrew, thanks for the update.
Please confirm if you already installed the Camera driver with the same version installed via Windows Update.
Please reset the Camera app via App Settings again:
> Press the Windows + I key to open Settings.
> Click on the "Apps" tab.
> Click on "Installed apps."
> Scroll through the app list or use the search bar to locate the Camera app.
> Click the three-dots menu (...) next to Camera app and select "Advanced options."
> Scroll down to the Reset section, and click on "Reset" (confirm the action if prompted).
> Restart your PC and test.
If issue persists please go back to same settings and click "Uninstall". After that please visit Microsoft Store and Install the "Windows Camera" again.
Let me know how it goes or if you have any further questions or concerns.
John J.D.