Agreed! The Principles of Product Development Flow by Donald G. Reinertsen[1] is one of my favorite product management books because it's very conceptual, but man the concepts hit home fast. This summary has a lot of great details [2] and the third chapter is entirely dedicated to the properties of queues.

After, Little's law, he introduces the First Queue Size Control Principle (Q13): Controlling queue size rather than capacity utilization offers a more effective way to manage cycle time and process efficiency. — No mister business stakeholder, adding items to the dev team's to-do list and making sure they are working 110% isn't going to get stuff delivered faster.

Diffusion Principle (Q15): Random processes can lead to queues spinning out of control; these high-queue states can last long and cause significant economic damage. — No mister business stakeholder, we can't fix this one little thing right now, it's bigger than you think and is going to make it harder to deliver the big important project.