I have started to learn flutter by Google and installed it in android studio. I have an emulator for Android but I don\'t know how to run this
Most iOS developers use (in a separate window) VMWare WorkStation (a virtual Machine) and install MacOS with XCode.
You can always go back to VMWare, but these 2 links might be helpful.
https://www.dreamytricks.net/ios-emulator-windows-run-ios-apps/
https://developer.xamarin.com/guides/cross-platform/windows/ios-simulator/