It's b0rked.
No, this is NOT the place for you to soap box about how your NVidia is perfect and you trust it to power your baby carriage and life support technology and you've put nvidia in your will/named your first born GeForce.
I have an RX580 8gb. 18.3.4 was badly broken for me with sea of thieves. Tons of driver crashes and lighting bugs on certain parts of the map. The new driver SEEMS to have rectified those issues.
HOWEVER:
MAJOR MAJOR Mouse stuttering and lag is caused. There *IS* a seemingly effective workaround: Turn on mouse trails. Turning on or off Enhance Pointer Precision didn't fix a damned thing for me, mouse trails DID.
https://www.reddit.com/r/Amd/comment..._1841_release/