@krashcan I wrote a mail to firstname.lastname@example.org and got a response, that they need to know something about me and the project. My understanding is, that without this information, we won’t get any approval to deploy on the Switch. I also find a good summary from Epic with Unreal Engine for Nintendo Switch. There is a checklist, how the process is done. And because of the NDA, I don’t believe, that cocos2d-x will be easy to be used as environment without work from our (the game developers) side.
My next step will be giving Nintendo the information they wanted and hope to get approved.