I understand the technical distinction, but regardless of terminology, I experienced lag on my prioritized device despite having plenty of bandwidth. For context, I have a similar setup to @theblureffect but with higher capacity (1Gbps down/35Mbps up), with one device prioritized and no additional rules. Even with congestion control at 85/65, I experienced issues last night while downloading a game at 50Mbps.
While I'll try adjusting the congestion settings to be more aggressive, I'm skeptical this will solve the problem since prioritization doesn't seem to be working as intended under minimal load. Unless this improves, I may need to switch back to the XR1000 which handled bandwidth management more effectively. In my mind the only real way to prevent saturation in all scenarios will be some form of bandwidth reservation.
I would love to have this option, even if it mean disabling other features.
For what it's worth, it's difficult to recommend this device seeing the failure to handle one of its primary selling points 😕 and I had a few in my small community asking me what hardware I run with. I just tell them "any router with QOS" instead of "Netduma R3", which pains me thinking this is now $250 wasted.