Smoothing the intersection boundary of two mesh - Questions

Is there a post-processing effect or method that can smooth the intersection line of two meshes? just like this:(smoothing the intersection area of head and neck)

Tuck-Folding Method for the Design of Origami Structures with Smooth Folds

Gmsh 4.12.2

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Intersection of two tetrahedra: a) The edges of two non-adjacent

Development of the 2D Computational Mesh

Fluids, Free Full-Text

211 questions with answers in MESH GENERATION

Noob question. I'm trying to remove material from each section, trying to make something like u carving for each section. Something like the other image. Did I go wrong on how to

Planar quads on a surface using kangaroo - Kangaroo - McNeel Forum

Surface intersection curves (green) are common in 3D animation. This

HEC-RAS Model with 2D Mesh Only. - Kleinschmidt

a) Initial design domain with boundary conditions. (b) SED

High-Order Mesh Morphing for Boundary and Interface Fitting to Implicit Geometries - ScienceDirect