In various articles and videos the Outline portion of the explorer is shown having a filter box. This seems to have been removed (or else some setting I haven't found hides it). The menu offers "Filter by Type", but it doesn't seem to have any effect. I know I can go into settings to show/hide various types such as functions, constants, etc.

What is Filter by Type supposed to do? Can I use it to show only functions, for example, without changing settings?

Sort by category groups functions together, variables together, etc. Maybe I'm mixing up what is meant by Type?