With the recent release of Android 14 QPR3 Beta 2, however, Google reversed course and enabled DisplayPort Alternate Mode by default in the Pixel 8’s software. As a result, when you connect your Pixel 8 or Pixel 8 Pro to an external screen using a compatible USB-C to USB-C or USB-C to HDMI adapter, you’ll now be met with an option to “mirror display,” as shown below.

Source: DeX-like mode coming to Pixel? Google finally enables display output