Quality of Service (QOS) on modern routers question

[#1]

Good Morning,

                        My Asus AC68 router has a QOS setting, which I use to control how my bandwidth is doled out across the house, my plusnet fibre service goes live on the 12th and I was wondering if this setting is now redundant as plusnet already apply that sort of traffic shaping?

[#2]

Upstream QoS is still useful if you do a lot of activities that upload heavily.  P2P being an example.