I am doing a Basic search with "Match All Word Forms" deselected.
The search of the Bookstore appears to ignore this selection and matches all word forms anyway.

Also, I do not want to search the Bookstore every time I do a search. This adds clutter to my search results and slows up the search significantly. (It added 5 seconds with a high speed Internet connection.)
When I search "All Resources", this should only include the resources I own, not things that Logos wants to sell me. There are many times I use Logos when I am traveling and have a slow Internet connection or limited data on my mobile hotspot. Many users outside the US have limited data and a search al All Resources should not subject them to expensive Internet usage. If I want to search the Bookstore, I will search Everything or the Bookstore explicitly.
*Logos 9.1 Beta 1 on Windows 10