System Info:
Heroic Version: 2.5.0 Yamato
Legendary Version:  0.20.31 Dark Energy (hotfix #5)
GOGdl Version: 0.5
OS: Freedesktop SDK KERNEL: 5.13.0-valve21.3-1-neptune ARCH: x64
CPU: AMD Custom APU 0405 @2 GOVERNOR: schedutil
RAM: Total: 14.49 GiB Available: 12.54 GiB
GRAPHICS: GPU0: VanGogh [AMD Custom GPU 0405] VRAM: 512MB  
PROTOCOL: x11

Game Settings: {
	"autoInstallDxvk": true,
	"autoInstallVkd3d": true,
	"preferSystemLibs": false,
	"nvidiaPrime": false,
	"enviromentOptions": [],
	"wrapperOptions": [],
	"savesPath": "{UserDir}/My Games/Marvel's Midnight Suns/Saved_Epic_{EpicID}",
	"showFps": false,
	"targetExe": "/run/media/mmcblk0p1/Epic Games/midnightsuns/MidnightSuns.exe",
	"useGameMode": false,
	"useSteamRuntime": false,
	"language": "",
	"wineVersion": {
		"bin": "/home/deck/.local/share/Steam/compatibilitytools.d/GE-Proton7-42/proton",
		"name": "Proton - GE-Proton7-42",
		"type": "proton"
	},
	"winePrefix": "/home/deck/Games/Heroic/Prefixes/Marvels Midnight Suns"
}

Game launched at: Sat Dec 03 2022 11:45:55 GMT-0500 (Eastern Standard Time)

Legendary's config from config.ini (before Heroic's settings):
{
  "game_parameters": [],
  "game_executable": "2KLauncher/LauncherPatcher.exe",
  "game_directory": "/run/media/mmcblk0p1/Epic Games/midnightsuns",
  "launch_command": [
    "wine"
  ],
  "working_directory": "/run/media/mmcblk0p1/Epic Games/midnightsuns/2KLauncher",
  "user_parameters": [],
  "environment": {},
  "pre_launch_command": "",
  "pre_launch_wait": false
}

Launch Command: STEAM_COMPAT_CLIENT_INSTALL_PATH=/home/deck/.var/app/com.heroicgameslauncher.hgl/.steam/steam STEAM_COMPAT_DATA_PATH="/home/deck/Games/Heroic/Prefixes/Marvels Midnight Suns" PROTON_NO_ESYNC=1 PROTON_NO_FSYNC=1 STEAM_COMPAT_APP_ID=0 SteamAppId=0 SteamGameId=heroic-midnightsuns PROTON_LOG_DIR=/home/deck/.var/app/com.heroicgameslauncher.hgl /app/bin/heroic/resources/app.asar.unpacked/build/bin/linux/legendary launch 49550aa9fcd74552ae07c4e9f2c262fe --language en --override-exe "/run/media/mmcblk0p1/Epic Games/midnightsuns/MidnightSuns.exe" --no-wine --wrapper "'/home/deck/.local/share/Steam/compatibilitytools.d/GE-Proton7-42/proton' run"

Game Log:
[cli] INFO: Logging in...
[Core] INFO: Trying to re-use existing login session...
[cli] INFO: Checking for updates...
[Core] INFO: Getting authentication token...
[Core] INFO: Getting ownership token.
[cli] INFO: Launching 49550aa9fcd74552ae07c4e9f2c262fe...
wineserver: using server-side synchronization.
wine: RLIMIT_NICE is <= 20, unable to use setpriority safely
[S_API] SteamAPI_Init(): SteamAPI_IsSteamRunning() did not locate a running instance of Steam.
[S_API FAIL] SteamAPI_Init() failed