So I viewed the video on L4's basic search and performed a basic search on "purgatory". I noticed that the search doesn't populate potential matches as I type as it does in the Win version.
More importantly though, the results show up but do not open when I click on the article titles it only opens when I click the highlighted search word in the preview text below. in this case "purgatory"
Lastly when I opened the initial article it appeared on the right side of the screen. When I opened a second article it populated as a tab on the left where my search results had been. It would seem that each opened article should form a tab on the right where the inital article was opened?