App Updates using Unlisted App Distribution

I'm releasing an app using the Unlisted App Distribution option since it's only for employees of an organization.

Everything I read about it make it seem like these apps are just normal App Store apps, with the only difference being that they are not discoverable by the general public.

So if that's the case, when I release an app update through App Store Connect, will the app updated automatically on end users phones like a normal App Store app, or they will need to manually open the link and download the update manually through the App Store?

App Updates using Unlisted App Distribution
 
 
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