As per the FSM I checked the fuses- fine. Swapped relays- problem didn't move. Next up was to swap bulbs to see if the problem moved.
When I removed the passenger side bulb (the problem side) it was cracked. I'm not totally sure if it was already cracked or if it happened while I was removing it. I didn't touch the bulb, just the base. The bulb did barely touch the headlight assembly as I was pulling it out but not with enough force to crack it unless it's ridiculously fragile.
It appears only the outer glass is cracked not the inner capsule. In this state would it still be able to flicker as in the video? If yes, then it was already cracked somehow and there's the problem.
Here's a pic:
Either way I need a new bulb