Great question, so Cicada.Os's security is LUKS, scopes, Helium policy, AFU/USB lock, kill switch, not necessarily compositor language. Hyprland is just the default desk engine for tiling and dock/icons. But, if you prefer Rust, you can go to Settings → Desktop session → niri.

The other side of this is that, just to be frank, I figured more people would be familiar with Hyperland, which maybe that's a dumb reason lol.