The repository '...' no longer has a Release file.

 ╭─proxzima@proxzima in ~ took 55ms [ 100%]
 ╰─☣ sudo sh -c "apt update;apt full-upgrade;apt autoremove;apt clean"
[sudo] password for proxzima:
Hit:1 http://archive.ubuntu.com/ubuntu hirsute InRelease
Hit:3 http://ppa.launchpad.net/linuxuprising/apps/ubuntu hirsute InRelease
Hit:6 http://us.archive.ubuntu.com/ubuntu hirsute InRelease
Ign:7 https://download.opensuse.org/repositories/home:/luke_nukem:/asus/xUbuntu_21.04  InRelease
Hit:8 http://ppa.launchpad.net/system76/pop/ubuntu hirsute InRelease
Err:11 https://download.opensuse.org/repositories/home:/luke_nukem:/asus/xUbuntu_21.04  Release
  404  Not Found [IP: 195.135.221.134 443]
Hit:12 http://apt.pop-os.org/proprietary hirsute InRelease
Hit:18 http://us.archive.ubuntu.com/ubuntu hirsute-backports InRelease
Reading package lists... Done
E: The repository 'https://download.opensuse.org/repositories/home:/luke_nukem:/asus/xUbuntu_21.04  Release' no longer has a Release file.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Calculating upgrade... Done

The release is moved to a standard repository? Or is it permanently removed?