Offset Cut is a popular function introduced to Blender by "Mesh Machine" add-on.
This is an attempt to recreate the same using Geometry Node Tools

Features

• Works on Multiple Selections

• Works on Cyclic and Non Cyclic Selections

• Respects sharp corners depending on the "Angle" input

  
  

Known Quirks

• The tool works off of Mesh Boolean, so some hiccups are to be expected

• When the result is a mess, slightly changing the values can improve the output

• Make sure your mesh is manifold, some manual clean-up is expected after execution

Improved Algorithm

Warning

This extension is in an experimental stage and will remain so due to the unpredictable nature of Mesh Booleans. You can expect proper results 90% of the time, provided you are working on manifold geometry.

Support

Join the Discord Community for discussions - https://discord.gg/MUyNybDR6W