The evaporative cooler decides which window still has to open
A swamp cooler pushes air into a house and needs somewhere for it to leave, so one opening in the plan is not yours to seal.
Evaporative coolers are ordinary equipment on a Front Range roof and they work nothing like refrigerated air. The unit pushes a large volume of outside air through the house, and that air has to get out somewhere, usually through a window or a door left cracked at the far end of the run.
A homeowner who has just paid for tight new units does the opposite. She closes everything, the house goes stuffy by mid afternoon, and the new windows take the blame for a problem the cooler created.
So the clip worth having is the walkthrough where somebody asks which rooms the cooler pushes toward and which opening stays operable through the summer. Show the window being opened and say why it is part of the plan rather than a leak in it.
Stay on your side of the line. What the cooler needs belongs to whoever services it, and what a window company can speak to is which units still open, how far they open, and what a screen does to air moving through them.
None of that question exists in a humid market, which is why no manufacturer video answers it and why a straight answer from Denver County or Jefferson County travels further than it should.