I am not a businessman, just a gamer.
I find completely absurd that you need a team of 500, and then a team of 7 delivers Hollow Knight. I had way more fun with that game than with any AAA.
When WhatsApp was acquired, they had around 50 employees. By now, it's around 1500. It's still just a messaging app.
However it's my (mostly vibes-based) opinion that it impacts software more than most. Imo, disciplines with more stability benefit from knowing how many people are needed for specific roles, and probably don't step on each other's toes so much. Software projects often end up sharing so many interface points between devs. I can't imagine the amount of headaches a 100 strong org would generate when someone breaks CI, lol.
Coupled with the speed at which our industry changes (game engine updates, hardware evolution, new language hotness etc etc), it feels like there's no time to find the 'best' organisational strategy yet.
The game industry has merged with the gaming industry.