Vietnamese Instant Pot Oxtail Pho

Looks sublime and quick.
A good tip is washing off the pre-boiled oxtails before pressure cooking = a nice clean soup.
https://youtu.be/blcgiIcjBW4
https://rackoflam.com/oxtail-pho-recipe/
Ingredients
2 to 2.5 lbs oxtail
2 lbs beef bone
2 medium onions halved
1 large thumb ginger peeled and smashed
8 cups water
1 tbsp sugar
3 tbsp fish sauce or to taste
1 small Fuji apple peeled and cored
SPICE BAG
1 cinnamon stick
3 star anise
1 black cardamom pod
1 tbsp coriander seeds
1 tsp fennel seeds
TO SERVE
pho noodles
bean sprouts
basil leaves
lime wedges
chopped scallions
hoisin sauce
Sriracha
fish sauce