On https://en.wikivoyage.org/wiki/New_York_City you'll see the historical "Related pages" menu item in the left menu (note this is DESKTOP).
It's not showing up in http://en.wikivoyage.beta.wmflabs.org/wiki/Related_test
as it's being controlled by wgRelatedArticlesShowReadMore which is defaulting to false
The historical menu item should be determined by a separate configuration variable and not be controlled by wgRelatedArticlesShowReadMore
 It should be possible to enable read more (footer via beta features) but disable the left menu behaviour (e.g. for English Wikipedia)
 If read more footer and left menu are both enabled on Vector I see both (for time being until features have been consolidated - needed by Wikivoyage)
 If read more (footer) is enabled and related articles (left menu) is enabled but I do not have the beta feature enabled then I see the links in the left menu.
 If read more (footer) is enabled and related articles (left menu) is disabled but I do not have the beta feature enabled then I see no links in the left menu and no links in the footer.
 If read more (footer) is disabled and related articles (left menu) is disabled I see nothing.
Introduced by T117444