I heard about it before too and also would've expected more.
Maybe it can help when you have people downloading and hogging the line..
It's just a bit sad they lock being able to change it manually on your own router behind a monthly pay wall.
https://www.vox.co.za/wp-content/uploads/2021/07/20210710-Gaming-QoS-Terms-and-Conditions.pdf
Reading the T&Cs.
Like other members mention: it is only a QoS setting that is applied on your router.
"The benefit will be most apparent when the available bandwidth becomes saturated by other devices...
Been playing Overwatch a lot due to it actually being playable with fibre 150ms.
Also the middle east server they added last year.
Ready to go whole hog!
I'm using the afrihost huawei ax3 router.
It has exceeded my expectations.
Even on the 5GHz band (higher frequency lower range) it provides coverage to where my previous Tenda N300 was unable to.
It is consistently able to provide 25/25 speed package that I'm on.
Chromecast works great too.