Service Name: camsvc
Display Name: Web Account Manager Service
If this service is disabled or deleted, you will not be able to open and manage in (Settings > Privacy) and most of those settings, it will just not open and shut off.
And as a result if you can’t manage or allow some devices to use microphone or camera etc, those apps which need them will not work, simple as that.
If you want to be able to manage those settings, our advice is to keep this service enabled, with Startup Type set to Manual is enough.
Description
Provides facilities for managing UWP apps access to app capabilities as well as checking an app’s access to specific app capabilities.