Earlier quoted context omitted.
I experienced the same, but have had little luck finding more data about it. Got any details on where they've indicated that firmware update is coming? In my case, I set up dual-boot on my 13" Spectre. The Macbook USB-C charger has never once locked up the machine when I'm running Linux, but 100% when I'm in Windows, which makes me suspect a Windows driver issue.
I have a google pixelbook which only has usb-c for everything, including power. I have used many different usb-c chargers, including an apple usb-c that I'm charging right now. My android essential also seems to charge on any usb-c charger. Do you think this problem is found on other laptops outside these hp laptops?
None of them had the same issue, although Dell did ship a bad TB3 driver which needed to be manually fixed.
I have other USB-C devices, including phone, that charge just fine on any charger.