Back button navigates to task list instead of previous screen (mobile)

When I tap directly into a specific task from the homescreen, the back button should return me to the homescreen (where I came from), but instead it takes me to the full task list. Back navigation should follow the actual navigation path, not always default to the task list.

This same rule likely applies to other similar cases throughout the app — back navigation should generally respect where the user actually came from, rather than jumping to a fixed default screen.