There is no bribing here. They offer a better deal to developers than the competition is willing to do. And they have exclusives limited in time, the games aren’t blocked forever on their platform. That’s a good thing for developers, making and selling games is a bad business for a lot of people, Epic is offering very good terms, in exchange for a 6 months to 1 year exclusivity.

I personally see it as very good on the long term, that’s how you compete with a monopoly like Steam. That means more cash invested in making games, more options for developers, more options for users.