Microsoft stunned the gaming industry when it announced this week it would buy game publisher Activision Blizzard for $68.7 billion, a deal that would immediately make it a larger video-game company than Nintendo. Microsoft, maker of the Xbox gaming system, said the deal would be good for gamers and advance its ambitions for the metaverse — a vision for creating immersive virtual worlds for both work and play. But what does the deal really mean for the millions of people who play video games, either on consoles or their phones?