I have tp link c6 router. Devices connected is one smart tv, one av receiver, galaxy s9, desktop pc(wired) and ps5. (Before is ps4pro). I found that I use for 2 years the smart function on router which use 2.4 ghz and 5 ghz the same ssd. Now I turn it off and have a separate name and pass dor 5 ghz. My logic is the tv and receiver to be on 2.4 (dont need 5 ghz) and the ps5 alone on 5 ghz for better result. (Turn off wi fi on phone when play). Before that everything was on 5 ghz. I have couple of questios:

1. The ps5 have wifi6 mu mimo. Any benefit to turn ON mu-mimo on the router or keep it off? 2.Any benefit to turn ON QoS on router?

2. Any benefit to get wifi 6 router? Thanks.