If you have gone through the Concepts section of this site, maybe you want to test out some things. The easiest way to do that is to use this Stackblitz repo:
It gives you a starting point that you can use for experimenting, bug reporting, or more advanced support questions.
There is a whole collection of examples on Stackblitz, how to use select/drop menus, grouped radio buttons, checkboxes, etc. Check it out here:
Send a message on Discord or post a discussion on Github if you have an idea of an example that should be included!