Just a very short but infuriating hint today. Many people seem to be having issues getting full 60hz 4k output from their XPS Laptops to external devices. I've had the same issue, and
Intel's AX201 Wifi and Bluetooth combination cards seem to have a bug in their firmware that can make your Bluetooth go to sleep forever. It's not the first time this happened to me, which is why I'm signal boosting the problem and its solution.
Dell's new XPS 17 line includes a new hardware array of microphones. That's cool, but it's not supported on most Linux distributions yet.