Can somebody help me under to find out under which license this addon is ac

Can somebody help me under to find out under which license this addon is distributed?
It says “Apache 2.0” on the side, to me this seems not correct.
While I am not a lawyer, I checked the source code and it contains the actual ckeditor5 source which is (if you don’t have purchased a license key) is distributed under GPL-v2. This causes at least some of the source code to be GPL-v2 aswell, right?
It would be really nice if somebody could clear up this topic for me.

Very good question. GPL-V2 is not compatible with Apache 2.0, so this addon needs further agreement with CKSource to embed CKEditor 5 freely.
Lucky me, CKSource provide free license to opensource.

Ryan Pang:
Very good question. GPL-V2 is not compatible with Apache 2.0, so this addon needs further agreement with CKSource to embed CKEditor 5 freely. Lucky me, CKSource provide free license to opensource.
![Agreement]
(https://vaadin.com/attachment/1afa68f3-0fd1-44d1-9cb6-bfdb07eb6508/free_open_source_agreement.jpeg)
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