Hello @mohanad and welcome to the Make Community!
Typically, in these types of scenarios, once the Notion item is created, you need to store the ID of that back into Todoist, if possible, like a custom field or something.
Next time the scenario runs, if the Notion ID exists in the Todoist item, you’ll know exactly which item to update in Notion and there’s no need to search for it.
If the scenario runs and there’s no Notion ID in the Todoist item, you’ll know you need to create a new Notion item.
Hope this makes sense and hope it helps!