HI
If you dont mind me asking, its purely out of curiosity and maybe to help better. In To-Do you can change it to show all your Tasks across all groups etc.
Is the issue that you cannot do it (or didnt think so) in To-Do or that you really want to grab them and store them in say, sharepoint or excel?
That being said, what you would need to do in Power Automate would be
Steps (Using To-Do Business Connector)
1. GetAllTodoListsV2
The above will pull back all your lists
2. Add an Apply to each to loop through them all
Inside the Apply to each
2a. Add another Todo Business Connector Action GetToDoListV2
This will pull back all the items in a list. You will need to use the folderId (from the Outer Apply to each to populate the input for this action)
2b. Add an Apply to each
-- Now loop through all the returned lists from 2a
---Inside You can use GetToDoV3 to grab the current Task from the 2b apply to each. Using the folderId from Step 2 apply to each and using the id from the 2b Apply to each
Now you will have all lists, all tasks within a to do list
What you want to do with them is a different story but thats what you do.