The "Final Fantasy Lab" likely refers to the ongoing experimental projects at Creative Studio 3 (formerly CBU3), which is currently working on: Final Fantasy XIV "Rebirth
There are indie-style projects, such as those found on Patreon , that use titles like "Ukiyo Fantasy Fair" to explore gameplay mechanics within this specific aesthetic.
Below is a story inspired by this "Final Fantasy Lab" concept, set within the drifting, artistic realm of a Ukiyo-inspired world. The Weaver of the Floating World