System Info:
CPU: 8x Intel(R) Core(TM) i5-9300HF CPU @ 2.40GHz
Memory: 33.56 GB (used: 4.79 GB)
GPUs:
  GPU 0:
    Name: NVIDIA Corporation TU116M [GeForce GTX 1660 Ti Mobile]
    IDs: D=2191 V=10de SD=3ffc SV=17aa
    Driver: nouveau
OS: Ubuntu 22.04.1 LTS (Jammy Jellyfish) (linux)

The current system is not a Steam Deck
We are running inside a Flatpak container

Software Versions:
  Heroic: 2.11.0 Kumachi
  Legendary: 0.20.33 Undue Alarm
  gogdl: 0.7.3
  Nile: 1.0.0 Jonathan Joestar

Game Settings: {
	"autoInstallDxvk": true,
	"autoInstallVkd3d": true,
	"preferSystemLibs": false,
	"enableEsync": true,
	"enableFsync": true,
	"nvidiaPrime": true,
	"enviromentOptions": [],
	"wrapperOptions": [],
	"showFps": false,
	"targetExe": "",
	"useGameMode": true,
	"useSteamRuntime": true,
	"language": "",
	"wineVersion": {
		"bin": "/home/nico-pc/.local/share/Steam/steamapps/common/Proton - Experimental/proton",
		"name": "Proton - Proton - Experimental",
		"type": "proton"
	},
	"winePrefix": "/home/nico-pc/Games/Heroic/Prefixes/default/Rocket League",
	"wineCrossoverBottle": ""
}

Game launched at: Sat Dec 23 2023 13:39:35 GMT+0100 (heure normale d’Europe centrale)

Launch Command: HEROIC_APP_NAME=Sugar HEROIC_APP_RUNNER=legendary HEROIC_APP_SOURCE=epic DRI_PRIME=1 __NV_PRIME_RENDER_OFFLOAD=1 __GLX_VENDOR_LIBRARY_NAME=nvidia DOTNET_BUNDLE_EXTRACT_BASE_DIR= DOTNET_ROOT= STEAM_COMPAT_CLIENT_INSTALL_PATH=/home/nico-pc/.var/app/com.heroicgameslauncher.hgl/.steam/steam STEAM_COMPAT_DATA_PATH="/home/nico-pc/Games/Heroic/Prefixes/default/Rocket League" STEAM_COMPAT_INSTALL_PATH=/home/nico-pc/Games/Heroic/rocketleague WINE_FULLSCREEN_FSR=0 STEAM_COMPAT_APP_ID=0 SteamAppId=0 SteamGameId=heroic-rocketleague PROTON_LOG_DIR=/home/nico-pc/.var/app/com.heroicgameslauncher.hgl /app/bin/heroic/resources/app.asar.unpacked/build/bin/linux/legendary launch Sugar --no-wine --wrapper "/app/bin/gamemoderun /home/nico-pc/.local/share/Steam/steamapps/common/SteamLinuxRuntime_sniper/run --filesystem=/home/nico-pc/Games/Heroic/rocketleague -- '/home/nico-pc/.local/share/Steam/steamapps/common/Proton - Experimental/proton' run" --language en

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...
[cli] INFO: Launching Sugar...

Legendary update available!
- New version: 0.20.34 - "Direct Intervention"
- Release summary:
 [!] Fixed webview based login
 [*] Fixed a number of bugs and performance issues

See full changelog for additional details.
- Release URL: https://legendary.gl/release/0.20.34
! This update is recommended as it fixes major issues.

- Download URL: https://legendary.gl/release/download/0.20.34/legendary
gamemodeauto: 
pressure-vessel-wrap[1778]: W: /dev/shm not shared between app instances (flatpak#4214). The Steam Overlay will not work.
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
fsync: up and running.
wine: RLIMIT_NICE is <= 20, unable to use setpriority safely
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
[S_API] SteamAPI_Init(): SteamAPI_IsSteamRunning() did not locate a running instance of Steam.
[S_API FAIL] SteamAPI_Init() failed
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
Warning, Product not found for the XEStatusOverride: 9357
Warning, Product not found for the XEStatusOverride: 9894
Warning, Product not found for the XEStatusOverride: 9774
Warning, Product not found for the XEStatusOverride: 9775
Warning, Product not found for the XEStatusOverride: 9776
Warning, Product not found for the XEStatusOverride: 9777
Warning, Product not found for the XEStatusOverride: 9832
Warning, Product not found for the XEStatusOverride: 9839
Warning, Product not found for the XEStatusOverride: 9895
Warning, Product not found for the XEStatusOverride: 9896
Warning, Product not found for the XEStatusOverride: 9897
Warning, Product not found for the XEStatusOverride: 9898
Error, FSaveDataImportTask: '..\..\TAGame\SaveDataEpic\DBE_Production\f6044dcbd32e4c2bba6df6f5f0e0d227.save' no files found
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory