When creating a sales sequence, it is possible to create a step that allows a user to schedule a task to send an email. When setting up this task, there is an option to select an email template to use. This option, however, does not exist when configuring a task that is created from a workflow.
Sales Sequence Email Task
Workflow email task
This little feature would streamline the process of creating an email when you have a ticketing pipeline for a client fulfillment process such as onboarding.

