After the latest update (with new EAC) it doesn't work for me anymore. The launcher starts and game was successfully updated but then, during loading process, everything halts.
Tested with both Proton versions (8.0 and Experimental, with and without additional startup command string).
Update:
I was managed to successfully startup, login, check in-game mail and even run around in a social district but was instantly kicked out (in a minute or two) with explanation: You were kicked by EasyAntiCheat for the following reason: "Authentication timed out (1/2)".
It was done on steamless wine-8.6.1.r3.g4eb322dc (TkG, Staging, Esync, Fsync). In theory, properly compiled Wine (with EAC patches) should be enough. No Steam integration needed.