Technical Summary: EA App Update Loop & RPC Crash Fix
​Issue: The game fails to launch (typically after an EA App update), resulting in an RPC_S_SERVER_UNAVAILABLE (code=6ba) error. This is caused by the EA App's inability to finalize internal updates due to CreateSymbolicLinkW stubs in Proton, leaving the launcher in a "broken" half-updated state.
​Environment:
​OS: Bazzite / SteamOS (Linux)
​Proton Version: Tested on Proton 9.0-4 and GE-Proton
​Hardware: Handhelds (ROG Ally X, Steam Deck) and Desktop PC
​The Solution (Manual Update Override)
​If the EA App hangs at "Preparing Game" or crashes with an RPC error, the "Symbolic Link" must be bypassed manually:
​Identify the Prefix: Navigate to the game's compatdata folder:
~/.local/share/Steam/steamapps/compatdata/1238000/pfx/drive_c/Program Files/Electronic Arts/EA Desktop/EA Desktop/
​Manual File Migration: * Inside this directory, locate the folder with the highest version number (e.g., 13.x.x.x).
​Copy all contents from inside that versioned folder.
​Paste and overwrite everything into the parent EA Desktop folder.
​Clear Browser Cache: Delete the BrowserCache folder located at:
.../AppData/Local/Electronic Arts/EA Desktop/CEF/BrowserCache
​Launch via Desktop Mode: Perform the first launch in Desktop Mode to allow the EA App to finalize its account handshake.
​Required Launch Options
​To stabilize the EA App's background services and fix library mismatches (ELFCLASS32 errors):

LD_PRELOAD="" WINEDLLOVERRIDES="overlay64=d;igo64=d;upf=d" sleep 15; PROTON_LOG=1 %command% --no-sandbox --disable-gpu

Why this works:
LD_PRELOAD="": Prevents 32-bit library injection conflicts.
wininterface overrides: Disables the EA overlay and feedback services which frequently hang the RPC server.
sleep 15: Gives the background services time to initialize before the game process calls for them.
Manual Move: Solves the CreateSymbolicLinkW stub error where the EA App creates a link it cannot actually follow.

I hope I posted this right. Just wanted to help someone.