unable to access steamwork api

[scarf005]

Game information

https://store.steampowered.com/app/646570/Slay_the_Spire/

Distribution name and version where applicable

fedora kinoite 40

Flatpak info

Flatpak 1.15.10
nvidia-560-35-03
default
host

Problem description

copied from ValveSoftware/steam-for-linux#11333:

Your system information

• Steam client version (build number or date): 1726604483, Wed, Sep 18 5:03 AM UTC +09:00
• Distribution (e.g. Ubuntu): Fedora Kinoite 40
• Opted into Steam client beta?: No
• Have you checked for system updates?: Yes
• Steam Logs: steam-logs.tar.gz
• GPU: Nvidia
• steam installed via flatpak

Please describe your issue in as much detail as possible:

steamworks API fails to connect to running (flatpak) steam client.

Steps for reproducing this issue:

1. install flatpak steam.
2. ran ln -s ~/.var/app/com.valvesoftware.Steam/.steam ~/.steam because AFAIK steam API uses ~/.steam
3. attempted to run StS mod uploader: java -jar mod-uploader.jar upload -w MarisaContinued/
4. failed with:

[S_API FAIL] SteamAPI_Init() failed; SteamAPI_IsSteamRunning() failed.
[S_API FAIL] SteamAPI_Init() failed; unable to locate a running instance of Steam, or a local steamclient.so.
10월 09, 2024 11:13:18 오후 com.megacrit.moduploader.Uploader connectToSteam
심각: Steam API failed to initialize correctly.

5. if mod-uploader.jar is unavailable: the same error can be reproduced with https://github.com/ceifa/steamworks.js/ with node.js

$ mkdir reproduce && cd reproduce
$ npm init es6 -y
$ npm install steamworks.js
$ echo 'import steamworks from "steamworks.js"
                        
const client = steamworks.init(646570)
console.log(client.localplayer.getName())' > main.js
$ node main.js
[S_API] SteamAPI_Init(): SteamAPI_IsSteamRunning() did not locate a running instance of Steam.
[S_API] SteamAPI_Init(): Loaded '/var/home/scarf/.var/app/com.valvesoftware.Steam/.local/share/Steam/linux64/steamclient.so' OK.
IPC function call IClientUtils::SetAppIDForCurrentPipe took too long: 74 msec
Setting breakpad minidump AppID = 646570
SteamInternal_SetMinidumpSteamID:  Caching Steam ID:  76561198168686419 [API loaded no]
목도리

6. retried step 4 inside flatpak (flatpak run --command=sh com.valvesoftware.Steam) but the result was same.

Does this issue reproduce with native Steam
No