I sincerelly disagree. If previous driver works and newest doesn’t, that is an indication it is the GPU manufacturer’s fault and not Epic’s.
The engine is able to work in three different API layers of abstraction inside GPU driver’s DirectX, OpenGL and Vulkan. Usually one of them is the choice for shipping. If you test your game with a NVidia card and it works in all those 3 layers, I would say you are safe to ship your product.
Maybe, the extra work testing on a different vender (ie: AMD) would be the best of the worlds, but lets say you have figured an issue with AMD before shipping. What would you do? If it is a vendor’s fault, Im sure the issue could be addressed by Epic, they can make things faster on the vendor’s side. In this last case you need to provide the crash report for Epic and doing so, filling what are the conditions that can be used to duplicate the issue. You will need to confirm all the plugins in use from your game too. After submitting the crash report, I would also open a Bug Submission Form and provide Epic with ways to get their hands on a code that can be used for reproduction of this issue.