<span style="color:#323232;">Add this as a Steam launch option for the game:`PROTON_LOG=1 %command%`
</span><span style="color:#323232;">
</span><span style="color:#323232;">How?
</span><span style="color:#323232;">
</span><span style="color:#323232;">1. Right-click on the game title under the Library in Steam and select Properties.
</span><span style="color:#323232;">2. Under the General tab click the Set launch options... button.
</span><span style="color:#323232;">3. Enter the above code in.
</span><span style="color:#323232;">
</span><span style="color:#323232;">Logs will be saved to $HOME/steam-$STEAM_APP_ID.log, overwriting any previous log with that name.
</span>
If it’s happening on your desktop but not the steamdeck, my first assumption would be an issue with your desktop software/hardware.
Might want to check OS logs at the same time of the crash as well.