Bad Font Rendering on Linux with any JDK

Bad font rendering on linux, with any JDK, y tested the zulu JDK and OpenJDK on his versions 8, 11, and 15, without better font rendering. 

I also tried some of the solutions found in google, without any positive results. 

For example on  this link:

 https://askubuntu.com/questions/32624/ugly-fonts-in-netbeans-how-can-i-make-it-use-the-system-font 

I am using Fedora32 with GnomeDE, but the problem also occurs in other desktop environments eg. KDE or Matte, with any linux distribution. Other IDEs like Intellij or Eclipse have better font rendering. Attached Sample Images