@Tappers74, because I found this skip out of pure exploration curiosity, and have not beaten the game --- I have not looked for ways to benefit from this skip simply because I do not want to spoil the new areas, or softlock / break my save file lol.
I did quit the game and relaunch and it spawned me at the hospital where you first get the binoculars.
Thank you for doing your research on this!
After I actually beat the game myself, I will still be looking around to see if i can find some kind of endgame cutscene trigger that might trigger the end game sequence. Who knows with this kind of skip?
It uses legit precision parkour after obtaining the FAR JUMP skill, so its not a glitch as i know of.
What I don't know is, if we get to downtown early, can anything actually be done to make the game faster? Will take research from you smart runner peeps. Good luck
My Video - Get to downtown immediately after the prologue: