On the sautee function of your instant pot melt 1 tablespoon of butter and the olive oil.
Finely chop the onion and add it to the pot.
Sautee for 5 minutes until the onion has softened and started to brown.
Finely grate the garlic into the pot and mix, then cook for 30 seconds.
Add the rice and salt and cook while stirring for 5 minutes.
Add the red wine to the pot, then stir and cook for 1 minute until the wine has been absorbed.
Add the broth and lemon juice, stir and close the Instant Pot.
Cook for 6 minutes on high pressure, then release the pressure manually.
Turn the Instant Pot to sautee and add the second tablespoon of butter and grated parmesan, cook for 5 minutes.