I'm assuming you mean diversity in exclusives? Because there is plenty to play on xbox.
In terms of lack of exclusivity, a lot of that came down to MS board of directors wanting to completely shut down the xbox brand during the launch onwards of the xbox one. During that time MS appointed a new CEO and that boy in charge of the xbox brand "well if you dont want x1 theres always 360" douchebag was fired. Enter Phil Spencer, who managed to sit down with the CEO and convince him the xbox brand was worth keeping. However just because he managed to convince the ceo to keep xbox, it doesnt mean the ceo gave him more money. Phil has been on a journey not only to turn the xbox brand around from the shit it was in, but to also convince the board just how important and profitable the xbox brand could be with some tlc. I think this has been reflected in Phil being promoted to the board itself this year.
So while just recently the board have changed their tune, we sit in hope that this will also reflect their operating budget to provide a wider range of exclusive titles. However, the actual overall library is diverse as fuck, and PUBG is a solid pickup. Pubg is insanely popular, is a shooter with a newer format, and is a safe bet for MS expanding further. soiduno