This is Squeekboard, an on-screen keyboard explicitly designed for Wayland. Installing it is just as easy as everything else ...

Kitty is a terminal emulator written in C and Python with GPU acceleration and OpenGL rendering. It offers Wayland support and displays variable OpenType fonts, 24-bit colors and images.

Although this change between display servers is not something which should be readily apparent to the casual user, the change from the client-server-based X11 protocol to the monolithic Wayland ...