Window Switch is described as 'tool which allows you to move applications between networked computers, the windows appear where you need them, as they were' and is an app in the Network & Admin category. There are five alternatives to Window Switch for Linux, Online / Web-based, Mac, Windows and BSD. The best alternative is X2Go, which is both free and Open Source. Other great apps like Window Switch are Xpra (Free, Open Source), Net Meeting (Free), Quonference (Paid) and FastX (Paid).
X2Go is an open source remote desktop software for Linux that uses the NX technology protocol. X2Go can be used to access PC desktops, but its main use case is providing secure standalone remote sessions via ssh.
Xpra is 'screen for X': it allows you to run X programs, usually on a remote host, direct their display to your local machine, and then to disconnect from these programs and reconnect from the same or another machine, without losing any state.
Net Meeting provides a free solution for web conferencing, audio and video conferencing. Share your full screen with colleagues from around the globe. It enables you to invite attendees from inside and outside and monitor all meeting activities.
Quonference is a Web-based Video conferencing tool for business with a high security login system. It offers four security levels with fully open, user login required, invitation only, and FIDO2/Biometric login processes.