It isn’t that much of a spoiler. You find all this out in the very first part of the game.
If that’s enough to ruin the game for you, then it’s not much of a game. Even if it is a big spoiler for you it’s not that big of a loss IMHO - there are so many great games and so little time. The time you don’t spend playing OW you can spend playing something else.
Don't worry, I was being tongue-in-cheek. Running a company takes over any time I'd have spent on games.
Aside from a few weeks of Among Us during the pandemic, I think the most recent game I've played was Little Fighters 2 in 2003-2006!