At the moment, GOALS requires Proton 10 to run correctly on Steam Deck. Proton 11 Beta is currently not supported.
If you're having trouble launching the game, you can manually select Proton 10 by following these steps:
Right-click GOALS in your Steam Library and select Properties.
Navigate to the Compatibility tab.
Check "Force the use of a specific Steam Play compatibility tool".
Select Proton 10 from the drop-down menu.
Once selected, Steam will update the compatibility settings and GOALS should launch normally.
This workaround also applies to all Linux devices, including laptops and desktops running Steam through Proton.
We'll continue improving Steam Deck and Linux support in future updates.
See you on the pitch.