The cut taken by stores is of little concern to me as a consumer. Greenlight was a mess for a lot of reasons, but they discontinued it years ago, while Epic continues to pay for exclusivity deals. Steam provides lots of services to me that Epic doesn’t, though, as others have listed here. That said, I also like GOG and itch.io.
I’m a little disappointed that it doesn’t appear to be a direct continuation of Jin’s storyline, but I’m still excited.