Whether it's for a YouTube video, or just to show a family member which buttons to click, macOS Monterey includes ways to record your Mac's screen.
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The Mac's built-in controls can record your screen for you
If the job were just to capture your screen in such a way that it's useful to someone else, then you could just share your screen with them over Messages. But if one family member wants to know, you can bet other do too.Read more...