Round edge where multiple faces exists I've created a sample with a basic cube so I can explain it better, I'd like to smooth/bevel/round an edge  but in one side I've more than one face.
On the left you can see my basic cube, on the right side this is what I got when I bevel it

As you can see when you have multiple faces bevel is applied accordingly, what I really want is something like what you can see in the picture below:

When you have just one face the bevel is applied to the edge (because you just have one edge...)
Is there a way to &quot;round&quot; the edge (this is what I really want) without worrying to much about &quot;subfaces&quot; in my biggest one ? I have a polygon face with lots of &quot;blender faces&quot; in it.
I come from Lightwave3D and modo, so not that experienced with Blender, but I have tried everything and I just keep getting the same results as you. It looks to me like a limitation of the built-in edge-bevel algorithm, and probably solving with some editing is inevitable.
This is how I would approach this in Blender, given my simple experience so far. I have created a simple demonstration case. Pictures would probably explain the approach better:

I would knife-cut the main face at least, although other connected faces might need the same too (as in my case)

I would then dissolve the faces that are attached to the target edge

and lastly apply the bevel and clean afterwards, if necessary

cheers and good luck,