Hi, @liven stool
Thank you for posting in Microsoft Q&A forum.
The "Suppress program notifications" option is typically used when you don't want end users to receive notifications about a program being available or about its progress. This can be particularly helpful in scenarios where you want to minimize user interaction or prevent disruptions, such as during a silent deployment or when deploying background tasks that don't require user awareness.
You have to update the package on DP after you check it.
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After the way you tag questions on Q&A is updated, for any "Microsoft Configuration Manager" related problem, you can tag it with "Microsoft Intune", and then "Microsoft Configuration Manager" as the child tag.