I have been playing around with Blender and Unreal.
I watched a tutorial series on Youtube about Blender and made this.

Both programs are quite complex, obviously, there is a lot that they both can do. In both cases some things are a easier than one would think but others are more finicky.
There is a lot of back end stuff on Unreal that you have to deal with, it's not programming persay(though you can program instead if you want), they use nodes in something called blue prints. But that's the backbone of the game and what everything relies on but it's also annoying and time consuming. But then there are all sorts of assets on the Unreal marketplace including many that deal with blue prints.