I'm completely gutting and remodeling my home and I'm having an issue with stink/vent pipes for the plumbing,

My house has an in laws quarter that is on the other side of a wall in my master bathroom. My plumbing is venting the drains in my master bathroom using a studor redi vent system as in the picture and it's ran up into the wall that divides my master bath and in law quarter.

We are sound proofing this wall for privacy reasons and adding a vent on this wall will lower the quality of the sound proof job.

I was wondering if it's okay to run the vent line to terminate into the attic? My concern is this device needs air flow but my attic is sealed with spray foam so it no longer vents to the outside.

I have 3 other vent pipes in my house that terminate outside over the roof to the exterior but this one won't be able to as they already sealed the roof and we would have to create a hole and degrade the quality of the insulation.