Process for bazzite live beta access

https://bazzite.gg/ lists the open live beta from the download form, but if I go to the bucket (URI below), I don't have access.

Is there a process to get access to the beta iso?

https://download.bazzite.gg/bazzite-asus-nvidia-open-stable-live.iso

Bazzite makes gaming and everyday use smoother and simpler across desktop PCs, handhelds, tablets, and home theater PCs.

Process for bazzite live beta access - Bazzite