It is abusing .new domain.
The idea of .new domain is to create something new e.g meet.new creates new Google Meet, docs.new creates new Google Docs
— https://www.registry.google/policies/registration/new/
I’m not sure using it as their homepage that has a text box on it is really what they had in mind. It’s a page where you can take steps to create a chat session, it isn’t a new chat session in itself. This is like if facebook.new brought you to your main feed, since there’s a “What’s on your mind?” text box where you can create a post. Compare that with something like docs.new which will automatically create a document and open it for editing with zero steps.