Hi,
That is default nature of planner task- whenever you add the tasks to planner list, the first added task will go to bottom and latest added will be at top. Then we need to sort it manually- to make things look like as we need.
So we can do same in power automate, by first creating last To Do List (i.e in your case To Do List 3) and then other ones, then automatically others will appear in same order as you need.
For that i would recommend either to add the To Do List in excel in following order
To Do List 3
To Do List 2
To DO List 1
and then run your flow- it will work.
Else try this approach
I would recommend to add a No column which would be an auto number like below
Now refer the flow design as shown below
1. Use List rows to list rows in table by using No column in descending order
2. Now use apply to each action to create task in planner as shown below
Now see the flow results by running the flow
Also there is no need to enable concurrency here
Hope it helps !