The window closes immediately, sometimes the menu music will resume playing for about 20 seconds, then the game hangs with 5.5 GB of RAM in use for 3 minutes.
This happens regardless of whether I launch via Steam or Battlenet, on a clean install. I had the game installed via Steam and would use Steam to force stop it but thought Bnet would cure my ails. No dice!
Windows 10 (fully updated)
AMD Ryzen 5 3600
Radeon RX 5700 XT (latest drivers)
16GB RAM