Hi MD. I'm Greg, an installation specialist, 10 years Windows MVP, and Volunteer Moderator here to help you.
No, apps turned off in Background Apps will not get notifications.
Besides setting your Notification preferences for apps in Settings > System > Notifications by clicking on the apps, another way to turn off Notifications for the apps is to turn them off in Background Apps.
More here: https://ittutorials.net/microsoft/windows-10/tu...
I hope this helps. Feel free to ask back any questions and keep me posted. If you will wait to choose if I resolved your problem, I will keep working with you until it's resolved.
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