Depending on what you’re planning to use it for (are you looking to make an AR app that also records the user’s screen? are you just looking to record your own screen?), you may need a third party tool or plug-in. If you’re only looking to record in the editor, there is Unity Recorder: Working with the Unity Recorder - Unity Learn
The AR Foundation team is not able to provide help with Vuforia. For the most part we haven’t used it ourselves so we wouldn’t know if it supports a certain feature or not. From our FAQ :