@softyodayoann, I'm not aware of a change for that since this answer has been written.

For now, until you provide references, I've rolled back the edit.

@AminYa, I don't think so... but if you have references that indicate what you say, I'd be happy to read and learn about that.

@AminYa, thanks for that. But you should prefer avoiding bpy.ops and use bpy.data when possible (as it is faster)

I think round is fine.

It appears when opening the diffuse part. I've found nothing in the release notes about that. Maybe a UI bug as the "Viscosity" part is not really inside the "Diffuse" part.

@AminYa, object.data.materials is still supported.

I've the issue too with this file. when zooming to the center of the scene, objects around disappear and should not.

With the mesh as it is in the question, no this is not possible using gn except subdividing all the mesh parts (like subdivision modifier does using "simple" option).

Well, no it was not clear: an edge is delimited by two vertices. The link you just provided has subdivision. So you need to subdivide the mesh (as you want) and set random bevel. The way it should be subdivided is to determinate, but GN won't be able to do it like in your image (as there will be horizontal subdivisions).

You mean using the vertex group like in your file, or a random edge?

the blend file does not contain the reference images.

Still no response about that? I think this could be about the curve you're showing: what is the purpose of it? How it is done exactly?