I just got a XR500 running firmware 2.1.0.6 and playing PUBG PC version, seems the Geo-Filter is not working, it cannot detect the server on the map and sometime, it can detect for the first time, then the ping graph not refresh anymore.
I have added my PC to the device list and from the counter, the PUBG traffic is recognized as high priority which i think the router could identify my PUBG traffic.