Well, this has been an interesting few minutes.... Years ago, I disabled Spotlight because I found it bogged down my Air, but this thread got me curious, so I reenabled Cmd-Space and tried a few things, and am impressed...
...and my poking about re Spotlight led to me Stage Manager and I am very, very pleased. While I've always been a cmd-tab and cmd-esc person, Stage Manager is a wickedly cool and elegant new tool in my toolbox. I love how neat everything suddenly is!
I suspect that after I have played with these a while, I will end up checking out Raycast.