Oh I also misunderstood! I did send an email to DNB Bedrift customer service about Graphene support, citing the private app fix. They technically gave me a response that it would be looked into, but it felt very handwavy, and that was 3 months ago. It was via the bedrift portal, there is a "Send E-Post" button.

I don't know how to contact the engineering team. IIRC that is how the private app got fixed, someone got word to someone on the inside.