Epic Games CEO Tim Sweeney was asked by Verge why there is no support for the Steam Deck for Fortnite
I believe what wormtongue was saying here was that Google was paying developers to abandon their plans to release exclusively for the Epic store.
It doesn't mention forcing anyone to drop Epic, or other platforms. Not sure what is anti-competitive aside from forcing the Epic store to compete on their merits (price/platform support) instead of their exclusive game deals.