This is the popup I got when I just tried to use the “shift s” shortcut

This is the popup I got when I just tried to use the “shift s” shortcut

try to use the menu, and check Blender 4.0 manual!
Use menus, seems there are plans to change things that are not yet sorted out.
Shift S is still not functioning as of 4.1. You will have to add a node, that node will be “Noise Texture” since it replaced Musgrave.