Hi Mohamad,
Greetings from Syncfusion.
We would like to let you know that Essential Studio Enterprise Edition - Community license is not a trial version. If you are referring the Syncfusion assemblies from Essential Studio setup installed location (installed with community license), then it is not required to register the license key in your application. Also, it will not cause any issue if Syncfusion.Licensing assembly referred or License key registered in your application.
Starting with v16.2.0.x, if you reference Syncfusion assemblies from trial setup or from the NuGet feed, then it is must to register a license key in your projects as defined in below help documents.
Please let us know if this helps you.
Regards,
Vadivel Natarajan