src/vs/platform/update/electron-main/abstractUpdateService.ts/AbstractUpdateService/getUpdateMode
class AbstractUpdateService:	protected getUpdateMode(): 'none' | 'manual' | 'start' | 'default' {
		return getMigratedSettingValue<'none' | 'manual' | 'start' | 'default'>(this.configurationService, 'update.mode', 'update.channel');
	}