I saw on YouTube that the Unreal Engine channel posted a video “De-Spaghetti Your Blueprints”. I think one of the reasons we see so much spaghetti is because the execution pins and the input-output pins all flow left to right.
The execution pins should be moved from left and right to top and bottom.
This makes the flow of execution move top to bottom of the graph and each step down the input and output will flow left to right. Can’t remember the tool name or engine but its one of the only visual scripting tools I have seen with this stucture and it leads to a lot less spaghetti.