Google has confirmed that there’s a fix coming for the display flicker issue that’s affecting some Pixel 6 Pro units.

Some early Google Pixel 6 Pro adopters have reported a curious issue whereby the phone’s display flickers when in a powered down state, and when slight pressure is applied to the power button.

Or, to use Google’s wording, “Pixel 6 Pro users may notice slight, transient display artifacts when the device is turned off, and when they press on the power button with slight pressure but not enough to turn it on.”
…
Read more