@miekeroth@metin@mbt3d facegroups/Polygroups are existing in Blender too. But you can't use them (yet) for QuadRemesher. The Addon didn't get any updates in the rescent months. But it still works great, even with Blender 4. I don't know a better auto retopo routine for Blender. I know the coder (Maxime) has also written the original auto remesher. A great developer.