There's no official RC1 build for download either, and hasn't been from the first of Nov (when it was supposed to be available).
I've been looking every few days from the 1st of Nov, and the Release Candidate date on the projects page was pushed back to the 8th, but not updated since then.
The official Projects page still lists the Blender 4.0 goal as only "92% Completed":
If there really is a 4.0 release that's available now, then they've seriously gone wrong with the communication parts of their release process. :( :( :(