From their webpage … sounds pretty cool:
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.
Sway allows you to arrange your application windows logically, rather than spatially. Windows are arranged into a grid by default which maximizes the efficiency of your screen and can be quickly manipulated using only the keyboard.
One of the mods said (in the article) that to their knowledge it’s mostly the paid admins removing it not the unpaid moderators.