Instead of using Spotlight, in Finder, click File > Find and search there. The path to the folder should appear at the bottom of the Find window. FWIW, the Data folder doesn't show in my Big Sur installation either. I never noticed that before.
That search method, of course, has been around longer than Spotlight. I guess macOS developers at Apple* decided not to prioritize making Spotlight work since it's redundant to begin with.
*Of course, as directed by corporate policy makers.
