gnome

Gnome shell system monitor extension

https://aur.archlinux.org/packages/gnome-shell-extension-system-monitor-git/

https://github.com/paradoxxxzero/gnome-shell-system-monitor-applet

install gnome shell extension

https://www.baeldung.com/linux/gnome-shell-extension

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sudo apt update
sudo apt install gnome-shell-extensions

After that, we’ll launch the Activities menu, search for Extensions, and open it:

chrome install extension: Shell Integration extension

refresh page: https://extensions.gnome.org/extension/261/kimpanel/

click on/off button to install gnome shell extenstion