I know how to play guitar and it is easy.
piano is even easier.
unreal engine is easy compaired to other engines. you just need to break it down and learn each part 1 by 1. if you think you going to master it all at the same time then no.
you need to start with the basics of the ui, get to know that each part. lots of other engines keep ui elements on screen that can’t be used in each mode i guess due
to lazy coders saying eh we won’t hide elements that can’t be used at that moment we will just give them a prompt that they can’t use it cluttering up the ui.
unreal has streamlines every window to include what can be used in each window etc. there are so many resources for unreal engine its not hard at all with the thousands of
free assets, the live streams, the youtube videos and this forum and ue4 learning portal. you just got to have a focus, weather it be animation, blueprints, replication, learn each system 1 by one and soon you see a pattern as lots of features require the same stuff. figure out your task first. then once you have a task, search tutorials about that subject.
it can be easy as 1 2 3 if you put the time in to learn it. it is not hard like blender, maya, max, substance, 3d coat or other software because it can be broken down into topics. and learned easy since its ui is not cluttered up like other softwares are.