It depends. In Mini-Find, that setting isn't actually there, so it does not apply. It is available in Tool Find and for most command-line searches. There are cases where it is forced to end of match (quick-search, i-search), there are historical and functional reasons why they are that way. In the case of Mini-Find, I recall there being functional reasons why it caused issues that it wasn't available, I'll have to revisit it at some point.