Adoptium no amd64 packages found

Received via e-mail (DD):

I followed these instructions, the repo shows up in my terminal when I update with apt. But there are no temurin packages for the amd architecture. Link I used for instructions: https://adoptium.net/installation/linux/

Looking further into it, I noticed that indeed, there are no packages for amd64. Is this a glitch or is this just not being developed for amd64 anymore? Link for no packages: https://packages.adoptium.net/ui/native/deb/dists/kinetic/main/binary-amd64/Packages

Start with the linked Linux installation instructions and the packages.adoptium.net kinetic amd64 Packages index. Determine whether amd64 Temurin packages are expected for this distribution and document the cause or required support change; the issue is done when amd64 availability is clarified and the package source or instructions are corrected if needed.

Written by the indexing model from the issue text.