It's running the infotainment display(the one in the centre of the car) , but not the driver display. Fortunately I've never heard about the driver display crashing while driving, so at least Volvo had the good sense of making sure that is solid - but the infotainment display is known to crash frequently requiring a hard restart(you hold the button under the display for at least 10 seconds then the entire thing reboots), which maybe it's critical but means you can't change any of the climate controls(other than windows demist since it has its own button, thankfully) while the screen reboots.