LMAO. No. This has nothing to do with a router. TCP is a "fair" protocol. https://www.geeksforgeeks.org/tcp-fairness-measures/

How you can argue about this stuff and now even know how it works... beyond me.

A steam download (which tends to open multiple TCP channels, thus choking other connections on a network)... That's taking 50 mbps + your youtube video that wants to take 7mbps. 50+7 = 57 which is > 50 mbps. This is literally a capacity problem.

Once again... It would be the fact that you're using more than your actual bandwidth that you would cause excessive queueing and thus have a bufferbloat problem. But simply switching queueing mechanisms won't resolve it. especially if you're using traffic that isn't prioritized. Nor does switching queueing mechanisms mean that the problem was bufferbloat to begin with.