Season the chuck roast on both sides with garlic powder, salt, and pepper.
PRESS the SAUTE mode button on the Instant Pot. When HOT appears on the display, add butter and heat with the Instant Pot lid open until it begins to melt.
Add the chuck roast and sear for about 2 minutes on each side or until golden brown, Remove from pot and set aside.
Add the onions and cook for about 1 minute.
Add the wine and Worcestershire sauce and continue to cook for another 2 to 3 minutes until onions are softened.
Add 1/2 cup of the beef broth and scrape up any browned bits from the bottom of the pot.
Return roast back to the pot and add the remaining broth and bay leaves.
Close and lock the lid and set the valve in the SEALING position. Pressure cook on HIGH for 90 minutes.
Once the Instant Pot has finished cooking, allow it to naturally release for 20 minutes.
Remove the roast and shred.
Press the SAUTE MODE again and allow the juices to slightly reduce.
Assemble the sandwiches by layering the shredded beef and provolone cheese on the hoagie buns, Serve with the juice for dipping.