I have scanned through your links. I cannot see anywhere that...

I have scanned through your links.  I cannot see anywhere that RLS has been definitively linked to dopamine.  A heap of commentary about the role of dopamine in addiction etc., is already well known.

The role of dopamine has been well studied and if there were a clear link to its role in RLS I'm pretty sure it would be properly documented.

Your last link takes me to this
" Freedom from Want is the third of the Four Freedoms series of four oil paintings by American artist Norman Rockwell (1894–1978, pictured in his twenties). The works were inspired by U.S. President Franklin D. Roosevelt's 1941 State of the Union Address, known as Four Freedoms."

the connection with RLS being somewhat obscure.

It is unknown what causes RLS or what might relieve it.  Some drugs seem effective but the potential side effects will dissuade many from using them.
At least I offered my own experience of something that has actually worked for me, as opposed to some airy fairy conjecture.