Climax is a commonlly used term. There is a story telling model that include 4 points.
There are some other models like
- Climax can be inside here
But it does not necesary means that the product need to be shown there. That depends on the type of advert that you are promotioning.
Typical info ads can start with an exagerated problem, where the person strugles, then if the product is presented as a solution yes, can be on the climax or on some models a step after conflict, called solution.
But is some other ads the product can be shown just after the introduction (or the product itself is the introduction), and the development can go based on the product, like a typical car add.
Google something like this: https://www.google.com/search?q=storytelling+model
Another term similar can be "peak".
Edited. On that particular example, the product is actualy not showed but after, like a conclusion. That is not the "peak".
It has a looooong introduction, a little development (probably arround the dog walking) a very small climax, (probably that is not when the guy goes for the drink, but on the lateral plane, with the guy with his shoes on).
Aditional note. Every model is not a stiff recipy. It is ment to be broken and explored.