Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
   * What exactly did you do (or not do) that was effective (or
     ineffective)?
   * What was the outcome of this action?
   * What outcome did you expect instead?

*** End of the template - remove these template lines ***
clinfo, glxinfo and vulkaninfo are requires by KDE " Centre d'informations" but are not installed by default.
Since packages are not specified, a beginner may have difficulties to find them.