Testing the Mac installer (online variant) and the finish screen that tells you to either open devstudio or see information about how to start using CDK points to this:

https://developers.redhat.com/products/devsuite/get-started/

This page has instructions to install devsuite, which is redundant because the finish screen indicates you already just did this. Not sure what this should point to, but it seems like this is probably not the correct page.