After installing a new Ubuntu system, there are always a few things to do before ready to go. And, here are the things for Ubuntu 23.04 “Lunar Lobster”:
1. Update system package index.
2. Configure the left dock.
3. Install media codec
4. Enable Flatpak apps support.
5. Enable AppImage apps support.
6. Install Gnome Tweaks configuration tool.
7. Install Extension Manager.
8. Install “Just Perfection” extension to enable more configure options.