Xbox has spent the past year and a half pushing Xbox Game Pass. Every effort is being made to make the subscription service as attractive as possible. Microsoft clearly believes this is the way to deliver content for the foreseeable future.
At the Xbox X018 event in Mexico City today, Microsoft announced a new heavy-hitter for Game Pass. PUBG will be available to all Xbox Game Pass subscribers on Monday, November 12. PUBG originally came to the Xbox Preview Program in December 2017, so this addition happens about 11 months after it first launched.
There are plenty more Xbox Game Pass titles being added in the near future. Here's the full list from X018: