Don't throw things at me, this is just a thought.
I realize that our long-term goal is to simplify the overly-complex widgets we use for things like Scene and View Layer. But wondering if we would consider changing them in the mean time.
One issue with these widgets is the (confusing) use of the "duplicate" icon for New. Even when a newly-created item starts as a copy of something existing, the most important part is that something new is created while the starting defaults is only a secondary consideration.
Another issue is the use of "X" for removal that is so close to the application "close" icon on the Windows title bar.
The attached patch changes these to use "+" for New and the trash for removal. The following illustrates the change, with the window title bar to show the proximity. The top is how it looks now, while the bottom is after this patch is applied. I think the latter is clearer and less confusing next to the title bar.
Again, just a suggestion disguised as a patch. LOL