How easy it is to develop a small game in Godot than in libGDX?

I have learnt libGDX but I want something like Godot and want to learn it too. I wanna know the basics before starting that is it easier in Godot? Just think of a low-poly open world game. Which one will u prefer, Godot or libGDX? I want open source engine and not something like Unreal or Unity.