Unreal is not that good for 2d games. It would be like using sport car for off road driving. Partially overkill, partially road trough problems.
Epic is working on paper 2d, but for now imo it has as much advantages as disadvantages over 3d.
So, yes unreal has paper 2d, but unless you really need to do pure 2d, i would recommend using 3d models on separate planes with very narrow fov camera.
I would say, just start doing your game, and watch tutorials when your knowledge is lacking to solve some problem.