New Linux users are often confused by the lack of simple system tools that seem to be obvious to commercial operating systems such as macOS and Windows. One such lacking tool is a screen recorder. Should you end up baffled by the complexity of the tools you found on the web to record your Linux screen to video, you can instead install and run Simple Screen Recorder. It is as straightforward as it gets, and as far as we were able to test, it works perfectly every time.
sudo apt update sudo apt install simplescreenrecorder