Disable Desktop Support Flutter
You can disable enabled flags with adding no- prefix to the enable command. For disabling linux desktop flag you can simply run flutter config –no-enable-linux-desktop.
flutter-desktop
Flutter – http.get fails on macos build target: Connection failed
Per my comment on the other answer, you should not use the Xcode capabilities UI for this. It will not correctly handle the two separate entitlement files in a Flutter project. You need to add: <key>com.apple.security.network.client</key> <true/> to macos/Runner/DebugProfile.entitlements and macos/Runner/Release.entitlements. This is documented here and here.
Unable to find suitable Visual Studio toolchain. Please run `flutter doctor` for more details
Install the Desktop Development with C++
How to enable Flutter internet permission for macos desktop app?
You need to add: <key>com.apple.security.network.client</key> <true/> to macos/Runner/DebugProfile.entitlements and macos/Runner/Release.entitlements. This is documented here.