So what we have is a page that shows a list of "Vehicles" and the Passengers inside them. Imagine that each "Header" is a Vehicle and when you click the accordion button, it will expand to show the Passenger details.
Now imagine the list of Vehicles can go up to 50+. If I use accordion, the load for this page would be very information-heavy.
So my question is, for this type of page, should I use a pop-up overlay instead? What other methods can I use so that I don't need to go to a separate page to show the Passenger info?
Edit: This scenario is different from the existing question because this is about overall page cognitive load and not just about scrolling.