I spent hundreds of hours over a decade ago playing jump challenges in Q2 mods that were just there to hone movement skills and help experts keep an eye out for errant pixels in the map that could be used to help you get to amazing places on the maps.

Jumps like these on action quake: https://youtu.be/8Za4g8mKBcA

Took dozens of hours of practice to accomplish without taking fall damage (which was crippling in this mod).