Circling your mouse pointer around and saying “this bit here” works badly on a call and worse in a recording. An arrow or a box around the thing you mean is much easier to follow.
macOS doesn't come with a way to draw over your screen. Use an overlay app like Quick Draw, and share your entire screen rather than a single window so everyone can see what you draw.
A for arrow, R for rectangle, C for circle, L for line, or T to type text. Keys 1 to 5 change the colour.Shift for straight lines and filled shapes, and hold Space to move a shape while you're still drawing it.Esc to clear the screen. Press it again and you're back in the app you were using.Made a mistake? Command-Z undoes the last drawing, and Backspace erases only what's under the mouse. If you forget a key, press / to bring up the shortcut card.
Quick Draw doesn't draw inside your apps. It draws on top of the screen, which is why one arrow can start in your browser and end in your code editor. When you share a single window, the meeting app only sends that window, so the drawings on top of it aren't included. Sharing the entire screen sends everything you see, drawings included.
The same applies to recording. QuickTime, the macOS screenshot toolbar (Command-Shift-5), OBS and Loom all pick up Quick Draw when they record the full screen.
Quick Draw is also handy when you need a screenshot with something hidden, like an email address, an API key or a customer name.
R.Shift and drag over the thing you want hidden. The rectangle fills in solid.Command-C to copy a screenshot to the clipboard, or Command-S to save one to the desktop. macOS may ask for screen recording permission the first time.Because the box is drawn before the screenshot is taken, there's nothing to crop or edit afterwards.
You are probably sharing a single window. A window share only sends that one app, and the drawings sit on top of the screen rather than inside the app. Stop sharing and share your entire screen or desktop instead.
Yes. Quick Draw draws on the screen itself, so anything that shares or records your whole screen picks it up. That includes Zoom, Google Meet, Teams, Slack huddles, QuickTime, the macOS screenshot toolbar, OBS and Loom.
Not while Quick Draw is in front, because your clicks are drawing. Press Escape to clear the screen, then Escape again and you are back in the app you were using.
Quick Draw is open source, so you can build it yourself from the code on GitHub. The Mac App Store version is US$1.99 and is the signed, sandboxed build that updates on its own.