Lots of things have changed with the nodes, we are no longer having to worry about going back and forth Object and Edit mode, we can ”stay” in Object mode while modifying and editing the nodes.

Sorcar nodes are mainly for 3D modeling, in a way that is quite similar to Houdini, but still using the familiar Blender 3D polygon modeling operations that you find in Edit Mode, and as Modifier, and more.

Basic nodes recommendation for you to explore:
1. Generator Nodes
2. Transform Nodes
3. Component Operations Nodes
4. Selection and Deselection Masking
5. Modifier Nodes

There is a long thread of Sorcar, and Punya Aachman actually made a video embedded on the forum:
https://blenderartists.org/t/sorcar-procedural-modeling-in-blender-using-node-editor/1156769

I supposed Sorcar Github also have some useful informations.

Have fun!!