If you have created the blog/article details page using SP Page Builder, then there is no need to separately link it to an “Articles” addon page.
Once an article is assigned to an SP Page Builder layout for single article view, Joomla will automatically use that SP Page Builder layout whenever that article is opened—regardless of whether the entry point is a blog index, menu item, or any Articles addon listing.
In other words, the Articles addon page (index view) only acts as a listing mechanism. It does not control the rendering of the single article itself. The SP Page Builder layout takes over the article details view globally based on the article view override configuration.
So yes—what you want is already the expected behavior: you don’t need to link or duplicate anything between the Articles addon and the SP Page Builder single article layout.