This Extension Tells Your App Startup Time in Ubuntu 22.04 | 20.04
Want to measure your application launch time in Linux? There’s an extension can do the job for GNOME desktop.
Meaning Ubuntu, Fedora workstation, and other Linux with GNOME desktop can easily tell how much time it takes for launching an application, which is useful for benchmark and/or software developing purpose.
With the extension enabled, every time you launching an application, an on-screen display pops up shows the loading time in millisecond. Not only for native .deb/.rpm, but also for Snap and Flatpak applications.