I was unable to get wifi 6 to work in any capacity with my Steam Deck OLED. Anytime I’d even try it would break my wifi settings requiring a reboot.

The only think that fixed it was going into my routers advanced settings and changing the compatibility mode of my 5ghz network to remove AX compatibility. This seems to be what allows a router to run wifi 6. It removed the little 6 on all of my other devices, and suddenly my OLED could connect and everything’s been flawless since.

I’ve seen several other people with wifi 6 issues.

Other than my OLED not connecting to a Wifi 6 connection, everything else has been flawless. Had a day and a half of troubleshooting before I finally got my wifi 6 settings disabled and it’s been great ever since.