If you'd like to learn more about the new features in macOS Mojave, I recommend you take a look at the following video:
https://9to5mac.com/2018/09/24/macos-mojave-top-features-changes-video/
One feature that I've tried is Dark Mode, and find that I like it. Not a drastic change, but pleasant. This upgrade brings over some ideas from iOS, which you might find helpful.
Jim Hamm