"Ionic for Everyone"
Ionic framework originally had mobile development with Angular.js in mind. But with version 4 the tool opened up for development with other frameworks. The release relies on a collection of web components with custom elements and Shadow DOM APIs that are available in any contemporary browser.
New: Ionic Vue
As with the React version of the Ionic framework, the team behind the application decided to use the official router vue-router, which ships with Vue. In addition, the router API has been extended with the ion-router-outlet component to handle Ionic Framework animations. This component will be used instead of router-view, which is used in Vue applications. More information on the use of the extended component can be found in the announcement article.
According to the article, Vue itself does not support the development of mobile applications. However, Ionic Vue can be combined with Capacitor, Ionic’s cross-platform native runtime environment. Developers can apparently use this to develop their applications with the same code base as progressive web and iOS applications. For an example and closer information on the release, see the post on the Ionic framework blog. In the future, officials plan to release full Server Side Rendering (SSR) support for Ionic Vue.