What is a "sales Playbook" to you

STORY TIME:

When i got into saas i heard managers say they are running a certain play to get a deal done, like its a football game.

I was so confused.

then i heard we had a play book. the magical place that holds all the secrets to closing deals. My mind was blown! THIS IS AMAZING!

AEs kept referring to it and i wanted to get my hands on it.

turns out, it wasnt actually a real thing, and it was just a way ppl talked to sound cool.

When I think of a Sales Play Book what I think of is a place to reference how certain key things are done, what the standard sales process is, how to get approvals for certain items.

Does anyone work at a company that has an ACTUAL Sales Play Book that the team can reference at any time based on where they are at in a deal?

Ive also seen ppl boast about creating the sales playbook and ive been confused on how effective this is, or if its just a doc that says

Discovery call, Demo, Pricing call, free trial, close deal.