So i was thinkin of learning this, loved it when i first played it, but havent watched runs yet, are there any glitches or tricks to be aware of, or is a run pretty much just a playthrough of the game?

First of all, welcome to the speedrun community! The main place to start when learning this run would be to get the hang of the movement; Running and then jumping to recover stamina. You should also practice flashlight stuns to run by non-essential enemies. There will be some combat you'll be forced to do, you can see strats on how to do them fast by watching the top runner. Congrats, you're now a pretty decent Alan Wake speedrunner :)