In order to connect your Windows PC and Galaxy phone using Samsung Flow, you should make sure to have a Galaxy smartphone and tablet that runs on Android 7.0 or higher and a Windows PC that runs ...

However, you can currently download it easily from the Microsoft ... but it won't be able to run unless you have a Samsung PC ...

Samsung appears to have plans to retire support of its DeX Windows app upon releasing the OneUI 7 software update. “The DeX for PC on Windows OS will end support from One UI 7 version.