In Part 1 (recommend to read) of this review, we talk about Wayland and most popular Desktop Environment. This part is dedicated to work with the popular Linux applications. Software that was used in this review: Fedora Rawhide with GNOME 3.20 Beta, Wayland 1.10; Rebecca Black OS with the latest Weston Shell and KDE Plasma.
Some applications work natively with Wayland, some can be run only with XWayland. The XWayland applications must be slower ’cause Wayland compositor can’t work directly with X client and need the X server as a broker: Weston Compositor <-> X server <-> X client. The ‘slower’ sentence doesn’t mean “not ready for work”, in most cases the XWayland applications have enough performance for comfortable work. Some applications also have other problems not related to performance.