Can not install on RasbPi4 running raspOS-debian

[8eS3rz4sDu8oUx4q39hhv8o2k2e72dkb]

Linux-distro: Debian GNU/Linux 12 (bookworm) aarch64
Host: Raspberry Pi 4 Model B Rev 1.1
Kernel: 6.6.20+rpt-rpi-v8

Description:

sudo snap install kdiskmark - does not work

error: snap "kdiskmark" is not available on stable but is available to install
       on the following channels:

       beta       snap install --beta kdiskmark
       edge       snap install --edge kdiskmark

       Please be mindful pre-release channels may include features not
       completely tested or implemented. Get more information with 'snap info
       kdiskmark'.

sudo add-apt-repository ppa:jonmagon/kdiskmark
sudo apt update
sudo apt install kdiskmark - does not work

 File "/usr/bin/add-apt-repository", line 362, in <module>
    sys.exit(0 if addaptrepo.main() else 1)
                  ^^^^^^^^^^^^^^^^^
  File "/usr/bin/add-apt-repository", line 345, in main
    shortcut = handler(source, **shortcut_params)
               ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/shortcuts.py", line 40, in shortcut_handler
    return handler(shortcut, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 86, in __init__
    if self.lpppa.publish_debug_symbols:
       ^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 126, in lpppa
    self._lpppa = self.lpteam.getPPAByName(name=self.ppaname)
                  ^^^^^^^^^^^
  File "/usr/lib/python3/dist-packages/softwareproperties/ppa.py", line 113, in lpteam
    self._lpteam = self.lp.people(self.teamname)
                   ^^^^^^^^^^^^^^
AttributeError: 'NoneType' object has no attribute 'people'

any ways to install this on rasp?

Steps To Reproduce:

[JonMagon]

The snap package exists only for amd64. The PPA error has nothing to do with the package.
You can download the binary arm64 package from here: https://launchpad.net/~jonmagon/+archive/ubuntu/kdiskmark/+packages

[8eS3rz4sDu8oUx4q39hhv8o2k2e72dkb]

You can download the binary arm64 package from here:

Thanks! Installed [kdiskmark_3.1.4-noble_arm64.deb]
But what the difference between noble and bionic and which one will be stable?