From time to time, Apple Brasil publishes videos on its YouTube channel with tips on products / services. Here are the last three:
How to Share Photos on Mac
Share your favorite memories right from your Mac. Here's how to share photos using Messaging and set your favorite photo as your desktop image.
How to record screen on Mac
Learn how to record the entire screen or part of it in macOS Mojave. Here's how to record sound from different sources and quickly edit your recording before sharing or saving it.
How to install Mac software updates on macOS Mojave
Learn how to install screen updates as they become available, so you always have the latest features and security enhancements from macOS.
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Always very helpful and welcome. ?