I have not had any crashes with it, saying that think Watchdogs has only crashed a couple of times tbh.
Unstable overclock on your system maybe ?
Been stable for about a year, played countless other games.
I've just noticed that the new Nvidia hotfix mentions fixing Valhalla random crashes which doesn't make me feel better knowing it's got a known issue.
But I am very angry that a game can cause your PC to blue screen. I pride my self on the stability of my system. It's pretty rock solid.
And then to see it blue screen almost every session or two is very poor from Ubisoft.
It COULD be my ram, yes. But I have stress tested it and it is fine, it has also been stable at these settings over at least the last year of solid gaming.
Only other change I have made is installed a 3080. :/