Configuration to hide category on Application Finder, only show application list
No need, just move the slider all the way to the left.
That doesn't work for you?
Didn't notice that, Good enough
Andre Miranda referenced this bugreport in commit 2728277483802dd00ce27667006d284df42d32d5
Add hide category preference (Bug #14893)
Now I notice that there is an extra border on the left side of the application list and this is now annoying me :)
Besides that, this seems not easily discoverable, so I introduced a preference to hide categories.