The flying chair has been modeled and rigged in Blender 3.0. So, you can use the character in Blender 3.0 and up.

The chair has been modeled with quads and n-gons with Non UV-Unwrapping. So you can use the chair only in Blender.

Please see rig presentation about the flying chairin the demo video.

Without using Bevel modifier: Faces = 38,848 , Vertices = 39,371

With Bevel modifier: Faces = 71,716 , Vertices = 76,186