Counterpoint: https://justingarrison.com/blog/2024-02-08-fargate-is-not-fi...

And also, you’ll notice that Fargate takes minutes to launch while Lambda takes a second or less. You’re waiting on AWS to launch a EC2 with your config and pull your containers into it.

(that article matches things I heard from Amazon when I asked why my stuff is slow)

the doc is out of date