To be more specific, the two versions are Java Edition and Bedrock Edition, and they'll both be available via Xbox's Game Pass for PC service from November 2, 2021.

Minecraft is a sandbox gaming phenom whose reach has extended to astronomical lengths. The game is massive in terms of its scale, detail, and diversity of gameplay, which has been further fleshed out ...

Java is also not terribly well optimized for 3D games like Minecraft, and wouldn't have run well on the first round of consoles it released on, which includes the Xbox 360 and PlayStation 3.