@flfl, once in touch with Tobii Pro, they should be able to redirect you the appropriate team to deal with your query.
This forum is intended for development questions related to the Tobii Tech range of eye trackers (which include the Vive Eye Pro but not the older deprecated Pro HTC Vive) and their associated SDK’s.
As you already have a contact within Tobii Pro Sales, then kindly ask that this specific query regarding Tobii Pro HTC Vive & Linux is forwarded to the Pro Support team. Best Wishes.