Is PUBG back?

I used to be big into pubg, played with the boys almost every night for a couple years, but obviously the game went downhill at some point as far as server issues, bugs, cheaters, and not many improvements so a lot of people stopped playing. I recently noticed that PUBG is #2 on the steam charts with almost triple the players as the rest of games in the Top 10. What have they improved to have almost 800k current players?