I don't know if this is something you already know about, but I thought it wouldn't hurt posting this here anyway as I couldn't find any mentions of it.
So I played through this game on the Xbox One S last year and found out, that by wall-running on a sloped surface like a chair, Tyler would just launch at high speeds (the angle, from what I remember, being different depending on the slope).
The Video I've linked is of me using this to trigger a cutscene early.
Hello, While playing through the new DLC levels and trying to find one of the hidden collectibles I found an easily recreatable oob glitch. (Here is a clip of me finding/performing it: ) You basically have to Ground-Pound Roll into the invisible wall in Dlc level 4. I have not tried it on any other walls at this moment in time. I did this on the current patch of the game on a Xbox One S.
So as the title says I may have just found an infinite height glitch. I have uploaded a tutorial to YouTube (). This might be useful for 100% or free play runs as it is (to my knowledge) required to use General Grievous to perform it. I am not completely certain on how to set up this glitch, but have also uploaded a full clip of what happened in the description of said video. It might also be helpful to know that I played on the most recent version on a Xbox One S.