Since a Destiny 2 update it's actually quite hard to filter so I'm not sure that would work, this is something that we have worked around with DumaOS 4 - making games that are unfilterable, filterable. It will come at a later date. You can't set the router into bridge or anything like that but you can just connect it as a router. The upstream router would apply any QoS rules to the R2 which by extension would also affect the devices connected to it.