Although the buttons light up when the screen is pressed, the navigation buttons and fingerprint sensor aren't working.
Restarts and factory resets don't solve the problem.
Doesn't appear to be the problem that some are experiencing where the very bottom of the touchscreen is dead as that all seems to test fine.
Running Pie with the March update applied.
It's still in warranty but using the limited Nokia repair options on the website this appears to be a chargeable repair. It's been back twice for the static screen problem (and had the main board replaced twice as a result) so paying to repair the phone feels like throwing good money after bad.