The documentation is a great place to start learning about DAX Studio
If this is your first time using DAX Studio the tutorials are a great place to get started
If you want to understand the different options you have when installing DAX Studio those are documented here
If you want to find out about specific features you can read through the Features section
If you have a question about DAX Studio you can ask on our Github Discussions page
If you think you are encountering a bug or would like to suggest a new feature you can log an issue on Github.