Smooth by angle (Auto Smooth) modifier shouldn't include instances by default

When you are scattering instances and then use Smooth by angle modfiier it smoothes all the scatered instances! It may provoke viewport lagging!

In most cases smoothing instances is non desirable feature and may cause performace drop when you scattering many of instances of highpoly mesh like plants or trees

The dafault node setup of Smooth by angle modfier should separate components node (like curve nodes in essentials tab)

• General idea:

• Including option to enable/disable instancing smoothing:

The main porblem is that Smooth by angle modifier is a fundamental default node group and it is embeded in UI of blender as button of context menu (user can't change it), so the functionality of it should be considered very responsibly.

One more time want you to notice that separating components is a general part of curves node in essential tabs, that has been added earlier: