When adding modifiers from assets in the new modifier menu, switching
the node group the modifier uses afterwards will not be common. The goal
is to replace the builtin modifier directly. In that case it's easier to
just add a new modifier. The "Empty Modifier" item makes it easy to
choose an arbitrary node group anyway.
Combined with hiding the two sub-panels when they are unnecessary,
many node-modifiers will look just as clean as their builtin counterparts.
The option to show the data-block selector is added to the menu
in the node header so it's still accessible though.
Pull Request: https://projects.blender.org/blender/blender/pulls/111995
0783debda8