xfwm4 is described as 'Xfwm4 is the window manager for Xfce. Xfwm4 can be run stand-alone, but if used this way, the Xfce Settings Manager will be required as a GUI to make configuration changes' and is a Window Manager in the os & utilities category. There are seven alternatives to xfwm4 for Linux, BSD and C++. The best xfwm4 alternative is Sway, which is both free and Open Source. Other great apps like xfwm4 are Compiz, Openbox, Fluxbox and KWin.
Sway is a Tiling Wayland Compositor and a drop-in replacement for the i3 window manager for X11. It works with your existing i3 configuration and supports most of i3's features, plus a few extras.
Compiz is a compositing manager adding fancy effects to your windows, from drop shadows to awesome desktop effects like the Desktop Cube or the Expo view.
Openbox is a highly configurable, next generation window manager with extensive standards support.
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Fluxbox is a window manager for X that was based on the Blackbox 0.61.1 code. It is very light on resources and easy to handle but yet full of features to make an easy, and extremely fast, desktop experience. It is built using C++ and licensed under the MIT license.
KWin is a window manager for the X Window System, and is in the process of becoming a Wayland compositor. It is an integral part, and the default window manager of the Plasma Workspaces, but it can also be used on its own or with other desktop environments.
IceWM is a Window Manager for X Window System. It is fast and memory-efficient, and it provides many different looks including Windows'95, OS/2 Warp 3,4, Motif.
JWM is a light-weight window manager for the X11 Window System. JWM is written in C and uses only Xlib at a minimum. Because of its small footprint, JWM makes a good window manager for older computers and less powerful systems, such as the .
