turn the Instant Pot to saute
add 1 TBSP oil
mix the flour, salt, pepper, and garlic powder together
toss the beef with the flour
when the Instant Pot is hot add half of the beef and quickly brown it
remove it to a plate once browned
repeat with the remaining oil and beef
once the beef is all browned set it aside
turn off the Instant Pot
use about 1 cup of the broth to deglaze the hot Instant Pot, don't let it cool down before deglazing the heat and water will steam off the browned bits be sure to completely clean the bottom of the pan it will keep the stew from scorching and it adds a lot of flavor!
once the inner pot is cleaned of all the browned bits layer in the beef, then the potatoes, then mix up the carrots, celery, and onion
sprinkle on the Italian Seasoning and minced garlic
pour the broth over making sure to poke down any vegetables above the broth
put on the lid, set to seal, press manual, and set the timer to 10 minutes
once the timer goes off let it natural release for 10 minutes
mix the corn starch and water together
open the Instant Pot
add a scoop of hot broth to the corn starch mixture, pour it all back in, turn the pot to saute and just thicken the stew up a bit, this step takes 2-3 minutes but makes the stew nice and thick