So I've noticed that macOS Finder wasn't playing nicely, in the context of showing m search results in the foreground.
I'd hit [Cmd][Space] to bring up the Spotlight search window, type a phrase e.g. UCD624, and expect the resulting folder to be opened in a new Finder window in the foreground.
For some reason, this stopped working a few weeks back, which kinda negated the benefit of Spotlight.
Thankfully, I found a solution here: -
which takes one through removing and then adding one's Mac hard disk into the Spotlight indexing algorithm.
Once I did the remove/add, Spotlight started busily reindexing my disk AND it now just works :-)