Same here, dell g3 3579 two weeks old. I upgraded disk and installed samsung 970 nvme ssd and everything was smooth. Today, I flashed bios with new version 1.7. New bios update makes laptop barely usable, lack of performance and huge keyboard input lag. Even better, most of keys are not usable at all. Downgraded bios to december update and keyboard is working ok, but small lack of performance is still there.