Microsoft To Do app has finally added jumplist support on Windows 10. The latest Microsoft To Do Windows app version 2.32 brings this feature.
You can now quickly jump to your desired smartlist on right-clicking the To Do app from the Taskbar or the Start Menu as shown in the featured image above.
It also seems that Microsoft is working on an iOS widget for Microsoft To Do. The official Twitter account confirmed it in response to a question. While there in no ETA for widget, the account provided a link to track the progress.