Why the "System Monitor" app is available to be installed through "App Center" if it is already installed?

Ubuntu
1

Hello Friends

By default Ubuntu has already installed the System Monitor app (GNome)

Due other post about “Monitoring” in this network I did do realize that

  • App Center → GNOME System Monitor

Is available to be installed (by Canonical)

  • Why does it appear if it is already installed?

Its screenshot shown through App Center is practically the same as the app running in my side

2

I think there is more than one app named “System Monitor”. I am on 26.04 and they used a new app named “Resources”, so in App Center I see two apps named “System Monitor” that can both be installed. One is a Snap and one is a Deb.

What version of Ubuntu are you on?