In Ubuntu system, most application windows by default start at the top left corner of the Ubuntu screen. If you wish to change this behavior, follow this tutorial. In this tutorial, I’m going to show you how to start the app window at the center of the screen automatically each time. You can do this via a terminal command or using the Gnome Tweaks tool.
1. Start App Windows in Center using Terminal
Open the terminal application (ctrl+alt+t) and run below command and press the enter key.
gsettings set org.gnome.mutter center-new-windows true
2. Center New Windows at Start using Gnome Tweaks
Install Gnome Tweaks from Ubuntu App Store or via below command in terminal.
sudo apt install gnome-tweaks -y
And open the gnome tweaks using below command or via Show Apps Ubuntu dock menu.
gnome-tweaks
Then click the Windows from left sidebar menu and enable Center New Windows option.
Now try to open any app, it will open in center.
