Switch to Todoist upon Creating Task
In iOS, after using the Todoist integration, the task is brought to the front within Todoist so that the user can add specifics (due date, priority, etc.) to the new task. This behavior should be replicated in MacOS. Currently, using the Todoist integration only sends the email to a specific project such that the user then needs to switch to Todoist, find the new task, and then open it to edit the details.
Taking this all a step further, please take a look at how Newton handles Todoist tasks. Users can add all of the task information without leaving the app, either on iOS or MacOS.

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Sebastián commented
+1 to this.