Season meat on all sides with salt and pepper.
Turn Pressure Cooker to Saute and let heat to hot. Add oil and sear meat on all sides until golden (about 2-3 minutes per side).
Add beef broth, 2 garlic cloves, onion slice and soy sauce to pressure cooker. Place lid on Instant Pot and turn to sealed.
Cook on high pressure for 60 minutes for extremely tender meat or 40 minutes for meat that can be sliced.
Once cooking time is finished, allow pressure cooker to naturally release for 15-20 minutes before manually releasing pressure.
Remove meat and shred with 2 forks or thinly slice.
Heat oven to 400 degrees and brush hoagie rolls with melted butter or oil.
Toast rolls for 5 minutes or until golden and rub garlic clove over inside of roll.
Layer meat and cheese on rolls and return to oven until cheese melts--about 3 minutes.
Serve with side of strained aus jus (cooking liquid) on side for dipping.