Good that these finally have a unified name now, rather than people just being expected to know that Fedora + [obscure mineral you probably haven't heard of] means immutable, plus having no idea of what mineral corresponds to what DE.
Silverblue and Kinoite are cool names, but really they should be renamed to Fedora Gnome (or Workstation, to line up with their standard desktop naming) Atomic, and Fedora Plasma Atomic, like they've done with Onyx >> Budgie Atomic
I understand why they wouldn't want to suddenly change the branding of existing projects though.