Phil shows how to use the preview feature for Notifications in Model Driven apps. This feature allows you to post notifications from any source for your user to act upon within a Model Driven app. In this video Phil shows how to enable this feature while in preview and how to integrate with it from a Canvas App and from Power Automate, triggering off Twitter posts and for new Power Automate approvals.
See more here: https://docs.microsoft.com/en-us/powerapps/developer/model-driven-apps/clientapi/send-in-app-notifications
Get the solution file Phil shows in the demo here: https://github.com/topness-msft/PowerCATLive/raw/main/Model%20Driven%20Apps%20Notifications/Notifications_1_0_0_7_managed.zip