This just started happening to me this week, other than game updates I’ve got the 2019-11 KB4523205 cumulative windows update, and NVIDIA Display update 26.21.14.3200 (driver version 432.00) recently.
It takes about 20 minutes and then the game just exits, yesterday I got through Dark Agartha and 2 missions, today it was Dark Agartha and 1 mission, then it crashed again after doing another mission and changing zone.
I’d put good odds on it being the display driver so I’m gonna go to a more recent one, but Windows seems to be forcing older versions up to this one now so if anyone else sees this maybe it’s helpful.