Apparently, their cost calculation is different. Also, Fortnite has about 50x active users compared to Apex Legends. That also changes a lot.
Sweeny said it doesn’t make business sense for them and if it will make sense in the future, they will support Linux.
I’m pretty sure that someone who does know their business figures and frequently has to justify them to shareholders has a better overview about what makes business sense for them than anyone of us.