LEGO® Elements are now available in Fortnite Creative and UEFN. All creators who are members of the Island Creator Program and sign the additional terms and conditions can build their own LEGO Islands using LEGO brand templates, props, consumables, items, and more. Additionally, players in your LEGO Island will be in the Minifigure LEGO Style of Fortnite Outfits.
Create your own LEGO® Islands with Fortnite Creative and UEFN
https://dev.epicgames.com/community/learning/talks-and-demos/lwG0/bringing-lego-elements-to-fortnite-creators-state-of-unreal-gdc-2024