Reset Gnome Desktop on Ubuntu 18.04 - Step by Step Process ?

This article covers how To Reset Gnome Desktop Settings To Default. 

To Reset Gnome Desktop in Ubuntu 20.04, Fedora, & Other Linux:

1. First install Gnome Tweaks (if you don’t have it) from your system package manager. Then launch the tool, go to menu -> Reset to Defaults.

2. Ubuntu's default Settings offers a button on header-bar to reset all keyboard shortcuts.

3. And you can reset most Gnome database to default via dconf command. Simply open terminal and run:

$ dconf reset -f /org/gnome/

4. Some changes need a restart to apply.

To install Gnome Tweaks.

Run the command below:

$ sudo apt install gnome-tweaks

After running the command you'll need to restart the session (logout/login).