I wouldn't really consider the game dead, as there's millions of players still playing.
I used to play PUBG and Fortnite a lot, and I consider Apex to be one of the best BR games to exist.
I remember around the launch of Apex there wasn't really anything fun to do, there wasn't any challenges or no battle pass. You would just play a game, win or die then repeat.
But nowadays it's pretty fun, there's challenges and a battle pass and more legends to play as. And also events and etc.