Unfortunately, the fix may have been a very weird coincidence. Similar issue today, though slightly different (display was blurry black boxes, fading at the top, but buttons and radio seemed to work).
I tried pushing on the screen again and banging above the hazard button. Neither worked.
eventually it just started working part way through the drive home. Weather was dry and mild so I don’t think that was a factor.
good luck all and here’s to hoping someone finds a fix