@Micheal Mallo - Thanks for the question and using MS Q&A platform.
The "Restrict access or encrypt the content in Microsoft 365 locations" action in Microsoft Purview DLP can be used to protect SharePoint files by restricting access or encrypting the content. When this action is applied, the user may still be able to view the file, but they may not be able to download it to their personal PC, depending on the specific restrictions that have been put in place.
The exact effect on the end user will depend on the specific policies that have been set up. For example, if the policy restricts access to the file, the user may not be able to view or download it at all. If the policy encrypts the content, the user may still be able to view the file, but they may need to enter a password or take other steps to access it.
It's important to note that the specific actions and restrictions that are applied will depend on the policies that have been set up by the administrator. If you have more specific questions about how this action will affect end users in your organization, I recommend reaching out to your IT department or Microsoft support for more information.
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