Reflexion will be End-of-life on March 31,2023. See Sophos Reflexion EoL FAQs to learn more.
Is there any improvements to be made regarding QoS in V19?
QoS is by no means bad on Sophos, but it could be improved.
Is it possible to implement something like cake_qos?
This seems to be the best solution I've seen for simplicity and effectiveness.