Remember GNOME Pie or Fly-Pie? There’s now a similar pie menu launcher for most Linux desktops as well as Windows and macOS.
It’s Kando, a free open-source application written mostly in TypeScript programming language.
With it, user can trigger a circular application launcher on desktop, then either use mouse clicks or draw gesture to launch apps, run custom scripts/commands, simulate shortcut key, or open files/websites.