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.

Good find, that's awesome! I had no idea this was possible.