Server Slam Weekend for Diablo 4 is imminent, and Blizzard has created a Known Issues thread so users can verify problems in the world of Sanctuary.
Wowhead will continue to update this post as more issues are identified and listed including unofficial queue times – stay tuned for updates!
UPDATE (May 12, 12:30 p.m. PST): Current queue times are close to 0 – log in and play!
UPDATE (May 12, 11:30 a.m. PST): Some information regarding NVIDIA DLSS support has been announced.