As the name suggests, when you hover your mouse cursor over the text, macOS will magnify and display a high-resolution zoomed version of the text in a separate window. This makes reading content a whole lot easier, whether the font size is tiny, or even if the screen is far away from where you’re seated.

This is an accessibility feature, but really anyone who use computers with high-resolution displays can potentially find utility in this capability. Anyone who has used any modern device knows how difficult it can be to read tiny text sometimes, so having the ability to magnify text is obviously helpful.

To enable Hover Text:

• Click on the Apple menu from the top-left corner and choose "System Settings..."
• Click on "Accessibility"
• Select "Hover Text"
• Enable "Hover Text" (to further customize this feature, click on "i" right next to the switch button)

As per the default settings, if you hover the cursor over any text that’s displayed on your screen while pressing the Command key, macOS will bring up the zoomed version right below it.