Fall Guys received an update last spring that added partial support for cross-platform play. This update only allowed PlayStation and PC players to create custom lobbies to play against one another. Now the game has full cross-play support.
Gamers just need to sign up for Epic Account and link it to Fall Guys. You can either invite your friends to form parties or just be available for full cross-play support parties to play cross-platform.
Fall Guys: Ultimate Knockout PC System Requirements
The update also brings a brand-new game mode called Sweet Thieves. It also brings several bug fixes.