@I-d-as Thank you for your thoughtful reply. As you mentioned there are ways to workaround the absence of drag and drop inside notes.
I would be thrilled to have this as a native functionality, or core or community plug-in.
Unfortunately I am not technically savvy enough to understand how such functionality could be created (or how difficult it would be, or what related consequences it might cause which would need to be addressed when creating the functionality.
Drag and drop within notes does seem like it is an extremely valuable functionality which would be continuously helpful to have as an aid to free form idea capture.
One can simply let the ideas flow, record them and reorganize blocks of ideas at will.
In any case, thanks again for your fast reply and willingness to help.