In this tutorial, you will learn how to install OBS Studio on Ubuntu 23.04. OBS Studio is free and open source software.
OBS Studio is one of the best softwares when it comes to live streaming. With OBS Studio you can stream on multiple sites, such as: Youtube, Twitch, Facebook, Restream and many more.
OBS Studio has a ppa on Ubuntu and it supports all Ubuntu systems that are 20.04 or newer versions.
In this tutorial, we'll be installing OBS Studio via the official PPA on Ubuntu 23.04
Step 1 - Add OBS Repository
First thing that you need to do in order to be able to install OBS Studio, is to add its official PPA on your system.
To add OBS Studio PPA, run the command below
sudo add-apt-repository ppa:obsproject/obs-studio
Once you execute the command above, you will see the following prompt, simply press ENTER to proceed adding OBS PPA on your system.

Step 2 - Update your system
After adding the official PPA of OBS Studio on your system, you need to update your system.
This step is necessary, so that the PPA that you added is added on the repository database.
sudo apt update
You should see OBS repository source on the terminal once updating your system

This means the OBS PPA was added successfully, and you can move on to the next step to install OBS.
Step 3 - Install ffpmpeg and OBS
After adding OBS PPA and updating your repository database, you can now install OBS Studio.
Launch your terminal, and run the command below to install ffmpeg and OBS Studio.
sudo apt install ffmpeg obs-studio

Step 4 - Launch OBS Studio
Now that OBS Studio has been installed on your system. You can start using it.
To launch OBS via the terminal, run the command below
obs

Conclusion
In this tutorial, you learned how to install OBS Studio on Ubuntu 23.04 by using its official PPA ppa:obsproject/obs-studio
OBS Studio also has a flatpak app, so you can install OBS with flatpak too.