With these nodegroups you can use the tools "Smooth" and "Randomize" within geometry nodes. Smooth out surfaces give offset the vertices randomly all over your model or by index selection.

Step1
Append the models with the nodegroups attached into your new project or just copy and paste them from one project to another.



Step 2
Connect the nodegoups to you liking and set the amount of smoothness or randomness of your surfaces.

Version 1.1
September 16, 2023
New and improved smooth method

Version 1.0
August 20, 2022
Release