They've made close to $100B on ARM (which they acquired in 2016). This dwarfs the $14B they lost on WeWork. Of course WeWork gets far more attention because it's a such an entertaining story.
The Vision Fund lost on tons more companies than just WeWork though. But your overall point is correct - there were a couple outsized winners (also just found another article that they made a huge gain on DoorDash) that I'm guessing took care of the majority of their losses.
