Crossplay

Is Minecraft: Story Mode - Episode 6: A Portal to Mystery crossplay?

Crossplay does not apply to Minecraft: Story Mode - Episode 6: A Portal to Mystery: it has no online multiplayer.

Minecraft: Story Mode is an adventure game set in a Minecraft world. It is a five-part episodic series that will take you to the Nether, the Farlands, the End, and beyond! You will drive how the story flows through the decisions you make: what you say to people (and how you say it), and what you choose to do in moments of thrilling action.