The Mac, like iOS, has a reasonable amount of fancy animations that support most user interaction. They can look pretty good, but they can also make people suffering from motion sickness feel unwell. That's not good, so you can disable it.
Regardless of what you do, it's not possible to prevent MacOS from getting carried away by throwing UI elements onto the screen without worrying about your health. However, you can limit the number of moves on the screen to which you are exposed by selecting a check box.
The "Reduce Motion" option does exactly what sounds like. By reducing movement and animations on the screen, the setting should make it easy for anyone to use the Mac without feeling uncomfortable. If you suffer from travel sickness, you should definitely try this setting.
Enable Motion Reduction
Because the description of the function may lead to the assumption that "motion reduction" is an accessible setting to get started over to the system settings. Click the Apple logo at the top of the screen and then click System Preferences.
Then click on "Accessibility" You will find it at the bottom of the system settings.
In the left pane, click the Show category. On the right side, select the "Reduce Motion" checkbox to enable the feature.
That's all that goes with it, and you can close the system settings. You should now find that movement is significantly reduced when using your Mac. Things like changing spaces and entering Mission Control will immediately look different, with crossfades replacing sash windows and windows. The new transitions are clearer to the eye and, depending on preference, seem even faster.
Unfortunately, not all areas of macOS consider this setting. In particular, the Mac App Store continues to work as usual, but you should note that videos are no longer automatically played.