About the test project it’s probably because they didn’t have yet updated the base (starter kit) for the test project, it happens. No worries about it. So just do as I displayed above, you should be good
ionic start yourproject --type=angular
npm remove @ionic/angular --save
npm install @ionic/angular --save
Something like that till they have updated the starter kit
-g ionic install Ionic, the CLI, globally for your machine. Not the library you use to code your app but the tools, the tooling. Like the tool which are use to create a test app or a new page etc.