src/renderer/windows/GPMWebView/interface/generic/shortcuts.js
// Stop Alt+Space on Windows
if (process.platform === 'win32') {
window.addEventListener('keydown', (e) => {
if (document.activeElement.value === undefined && e.altKey && e.which === 32) {
e.preventDefault();
e.stopPropagation();
}
}, true);
}