This is because with the addition of “App Resource Library“

This is because with the addition of "App Resource Library", when you long press to delete an app, the original menu text is adjusted from "Remove from Home Screen" to "Move to App Resource Library" and "Delete App". In other words, if you use an app icon that is low in frequency or that affects the look and feel, you can put it in the resource library instead of displaying it on the main screen.