I had the same issue with my Game, there is a setting on your itch.io page 'SharedArrayBuffers - it's marked as experimental, but seems to work fine (at least for my game)
I'm assuming you're talking about Shane's comment regarding input not working. Yes, SharedArrayBuffer is required for Godot builds - last time I tried to publish something without it, the launch was halted with a message stating I needed it, so it's already ticked. Thank you though, I appreciate you offering the suggestion!