Yeah pretty much
Yeah your (?SOD) error is similar to what happens to me. I haven't had a single BSOD to go on so no idea what it could be. I dont even have a spare gpu to swap out to test it. It happens to me at any time, whether it be browsing web or watching videos, most recently within 2-5 mins of logging in.
EDIT: Sometimes my screen flashes to a colour then goes back to normal and freezes.