@ryan
"app is ready" notifications are due to the window manager's focus-stealing prevention system. I do find it useful when clicking multiple links one after another so that Firefox doesn't raise/interrupt everytime.
If you have apps that trigger this in #GNOME when emitting notifications, then they're likely using the APIs incorrectly; see https://github.com/electron/electron/issues/18445#issuecomment-1963256166 for a technical explanation. AFAIK Electron still does it wrong to this day?


