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#20
Currently, the MS page dated with 4/19/2019 is the latest updated list there, but the list here in this tutorial is probably the most current.
If Settings itself will not open using either option below, then you have an issue unrelated to the URI shortcuts.
Open Settings in Windows 10
Other than a repair install, you could try using the command below from Option 2 in the tutorial below to reinstall and re-register the Settings app to see if that may fix it.
Reinstall and Re-register Apps in Windows 10
Code:PowerShell -ExecutionPolicy Unrestricted -Command "& {$manifest = (Get-AppxPackage *immersivecontrolpanel*).InstallLocation + '\AppxManifest.xml' ; Add-AppxPackage -DisableDevelopmentMode -Register $manifest}"