On the server side, Windows has RemoteApp to provide seamless remoting of Windows applications. The official configuration tools for it are only available on s

On the server side, Windows has RemoteApp to provide seamless remoting of Windows applications. The official configuration tools for it are only available on server editions of Windows, but open-source tools exist to enable it for certain client editions of Windows, such as [1]. The client side of this is built into Microsoft's RDP clients for Windows and macOS; not sure if any of the Linux RDP clients fully support it or not. (Irrelevant fun fact: this is also how GUI applications work under WSL, using an RDP backend for Wayland and the existing RDP application remoting tools on Windows to provide seamless windowing.) As for seamless windows with macOS on the server side, I'm not aware of anything doing that on any platform. It'd be really nice to have, though-- so I'm all ears if anyone else knows of anything. [1] http://www.kimknight.net/remoteapptool http://www.kimknight.net/remoteapptool