If you want to add some flavour before “baking” your camembert in your Instant Pot, use a Camembert Baker instead of the parchment paper. Amazon has a good selection of camembert bakers here. I bought mine from TKMaxx. Timing wise: you will need to add cooking time if you use a Camembert Baker due to the fact that they are thick and heat will take longer to get through than it does with the parchment paper, so I do 12 minutes on Manual/Pressure Cook and then wait 12 minutes to get it out.
What flavours could you add if using a Camembert Baker? I personally like cutting a cross and adding garlic, white wine and rosemary.