In my library Standard View (Audio), the Spotlight icon only appears next to "Close" in the upper right corner of the lower split view. Single click activates it after short delay.
Similarly, in library Standard View (Images), icon is next to the image size slider in the lower split view.
Absent from Player View, absent from my Links menu (which is fine with me, an improvement), and absent if view is not split.
or put the Icon in the neighborhood of the Artist Image?
That would be a more universally available location (assuming you mean the small Artwork image that is optionally turned on at top of main window (RMB > Show Artwork) ).
Perhaps no Spotlight icon at all in that area to keep things clean. Instead, Shift+click on the Artwork image. Maybe add a briefly flashed tooltip with shortcuts list when mouse crosses through the small Artwork image, but retain current enlarged Artwork display without tooltip when hovering. Also simply add it to the RMB context menu for small Artwork image, with keyboard shortcut indicated there.
MC 29.0.31 Windows 11 Pro 64-bit.