How to record your screen on a Windows 10 computer and capture your computer's audio along with it

You can screen record on Windows 10 using the Game Bar. A third-party app like OBS Studio allows you to record your screen and computer audio.
Macworld

How to Screen Record on a Mac with Audio

“Hoping someone has a solid recommendation on a plug-in or some way to do this correctly, without installing a bunch of questionable plug-ins on my Macbook. I want to record a Facetime video call, but ...
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How to Capture Your Screen in Linux with OBS Studio

If youre on a Linux machine and want to capture your screen, there arent as many options as Windows or Mac users have. What we do have, though, is one of the most powerful and also free screen capture ...