In addition to previously released Ubuntu 18.04 and Ubuntu 16.04, the third release (20180510.1 builds of Ubuntu 16.04 LTS), which is simply called Ubuntu, now exists in the Store, making it easier for users to download the latest stable version of the operating system.
In short, this edition is the choice that Canonical wants to offer several of its latest versions in the Store at the same time. Users who do not pay much attention to the choice of operating system version can use this to keep the system up-to-date.
Other Linux distributions will also enter the store in the coming months. Running Linux on Windows 10 is becoming more and more convenient for developers.
You can get it here.