If you happen to get your hands on one of these, you can get STW for free (non founders edition/rewards) by loading up the disk on your Xbox/epic account signed in2 fortnite (
How do I get my founder's friend codes on xbox? : r/FORTnITE
Apex Legends Founder's Pack Xbox One Digital Code - XBox One Games - Gameflip
Xbox Live founder leaves Microsoft | GamesIndustry.biz