Did you watch the video? Did you see the ult when Zarya ulted? Watch the shields melt? Sombra is amaze-sauce.

There is an item early on you can equip called “nixperience” and it prevents the EXP conversion to levels when you camp/rest for a night or during chapter ends. He basically just went and got it, put it on and played the game without leveling up. I’ve used it a couple times to bank up some exp and then stay at a…