How are the functions under Quick Action being picked to be listed?

Summary:

How are the functions under Quick Action being picked to be listed?

Content (please ensure you mask any confidential information):

Hi Experts,

Would like to reach out to you regarding the context of the "Quick Action" design under each modules in the homepage.

Please refer to the following 3 screenshots, that I am able to capture the idea of functions in tiles presented in homepage is the same as what the functions under the navigation panel (screenshot #1 and #2); however, may I ask how are the functions in "Quick Action" being decided to be presented (screenshot #3)?
Those functions under "Quick Action" is having a slightly different in the way they are categorized and in sequence comparing to those under "Task" list.