Is Avisynth worling with Hybrid on Linux?

[Selur]

There is no "avisynthExtensionPath" in the misc.ini because i dont have the extention installed?

The 'avisynthExtensionPath' should be set to the path where your Avisynth plugins reside in.
Since you wrote that you got a running Avisynth environment you need to adust that path accordingly.
Additionally inside the plugins folder, you need to create a version.txt with:

20210321

as content.

Cu Selur