At the moment, it is more like a collection of notes. I can search within Mendeley for literature, or drop a PDF in my watched folder.
With Scrivener 3, there is a quick reference pane button in the top bar, which you can either drag documents onto, or click if the document is highlighted. Than I created an outline of the chapter.
Yet, it was not love at first sight as it was the case with Citavi. As always, happy writing!!! Also, I configure the layout of my paragraph and section containers such that I can paste the zeroeth draft version to the right of a blank space for writing a honed draft of it.
Scrivener is great. I simply knew I would have to move the draft to MS Word anyway, since I was doing a quantitative study with lots of statistical tables. So if you can, I recommend getting a second screen, it will make life easier!
For me, this is the beauty of Scrivener. Some people use snapshots as a back up — just in case you want to roll back to a previous edit.