My SOs system76 had intermittent graphics issues and their tech support had hour-long calls with me over several weeks and additional emails correspondence where we did some very in-depth testing and monitoring of the machine. I think most of the testing was that their team genuinely wanted to know if it was a hardware or software issue and fix it right.

In the end they replaced the entire motherboard under warranty because they pointed out in another month and it wouldn’t be covered and it might fix it. It did.

I suspect it was just a bad Nvidia GPU. It sucks that it had the problem and that it was difficult to track down but all laptops break.

I challenge anyone to find that level of support from a Windows manufacturer without having a corporate account.