Part of Epic's problem is also their leadership pretty publicly showing they hate their potential customers on a regular and ongoing basis. If someone keeps screaming at me to eat shit and die, I'm not going to be particularly motivated to buy anything from them.

As far as GoG, they are actually my preferred storefront. I look at GoG for games before Steam, and am even willing to pay a slight premium to get them on GoG. Their DRM free stuff is a big thing for me. Being able to archive my games has value to me.