Search notes:

%LOCALAPPDATA%\Packages\Microsoft.DesktopAppInstaller_8wekyb3d8bbwe\LocalState\settings.json

%LOCALAPPDATA%\Packages\Microsoft.DesktopAppInstaller_8wekyb3d8bbwe\LocalState\settings.json is the User Settings file for WinGet (see winget --info).
This file can be opened by executing 
winget.exe settings

See also

The machine's portable links directory is C:\Program Files\WinGet\Links.

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