COSMIC 1.2 Desktop Adds Rust-Only Stacking and Tiling

COSMIC desktop environment version 1.2 is now available, built entirely in Rust with no remaining C code. It introduces native window stacking, letting users combine multiple app windows into tabs, and offers built-in, fully customizable tiling per workspace. The desktop also features a simple color-based theming system and a new COSMIC-native system monitor.