Simon Grimm, an Ionic Developer Expert, discusses the implementation of background tasks in Ionic apps using the Capacitor Background Runner plugin. This plugin allows developers to perform tasks such as data fetching, sending notifications, and obtaining geolocation while the app runs in the background. Historically, background tasks required native code, but Capacitor simplifies this process, though challenges remain, especially with iOS, which optimizes for battery life and may not execute tasks at specified intervals. The tutorial covers setting up a project with background tasks, configuring both iOS and Android platforms, and debugging methods, particularly on iOS. Grimm demonstrates using the Capacitor API for background task execution and integrating Capacitor Google Maps to show geolocation data. The tutorial emphasizes the importance of understanding platform-specific limitations but highlights the newfound ease of adding background capabilities to Ionic apps through Capacitor.