Drivers were very rough at launch. Some games didn't run at all, some basic functionality and configuration either crashes or failed to work, some things ran ve

Drivers were very rough at launch. Some games didn't run at all, some basic functionality and configuration either crashes or failed to work, some things ran very poorly, etc. However, it was essentially all ironed out over many months of work. They likely won't need to do the same discovery and fixing for B-series as they've already dealt with it.