You’re talking about a handheld device that uses like 25W of power??? We’re you expecting 4090 performance from a handheld?

Three dots button (…) on the bottom right, go through those settings and you’ll find one for the overlay, just slide it all the way to left and it should turn off.

Is your fan running? Might have been knocked loose during the install which would make your APU overheat pretty quick.

I know mod team stickied a comment in this thread, I’m not seeing anyone talking about the 6ghz band in there other than saying they’re excited to test it?

How old was the OLED? That’s not really as big of an issue on modern OLEDs, especially W-OLEDs. QD-OLEDs from what I understand are a lot more prone. I believe the SD uses W-OLED.