If Epic could actually provide a better service, they would be seeing customers and developers actually want to use their platform.
Doubt
Gog is objectively giving you more value for your money but even cdpr had to release the Gwent standalone on steam eventually because people didn’t buy it enough - once it was on steam it sold more than in a year on gog in weeks
People don’t look at the alternatives at all - unless it’s a AAA game with an exclusive deal
The non visual novel parts (the investigations) are by far the weakest point imho. I always was extremely happy to be back in court