Also keep in mind that each Chromium-based browser is different when it comes to policies.
For example:
In Chrome, the registry path is Software\Policies\Google\Chrome\
In Edge, the path is Software\Policies\Microsoft\Edge\
In Brave: Software\Policies\BraveSoftware\Brave\
In Vivaldi: Software\Policies\Vivaldi\
Yandex: Software\Policies\YandexBrowser\
Chromium: Software\Policies\Chromium\
The list will be very long if you want to do this for all Chromium-based browsers.