This link (64-bit Linux GUI) is broken. Also the 32-bit GUI has an invalid link. Where can I get the correct file(s)?
The GUI links on the download page were temporarily broken on purpose as the prior Beta 2 GUI was about to be updated in advance of the v6 fork. The Helium Hydra command line release became available before the graphical user interface. As of the time of this edit, the GUI links on the download page are now available too.
Check here for the CLI: https://github.com/monero-project/monero/releases and
here for the GUI: https://github.com/monero-project/monero-core/releases
I guess it's not ready yet as of now.