It’s all about trade offs and checkboxes(layovers, specific terminals, airlines, aircraft body types, price ranges, dates, non-stops, insurance, in-flight Wi-Fi, meals, early boarding) etc.
Do you first look through the page with all the options, then open different tabs with each unique combination of checkboxes and options enabled/disabled? That must exponentially (literally) harder than simply viewing fuzzy results on screen and pruning the decision tree in your head.