You mean in p5js?
I just loaded this The Wayfarer - Download Free 3D model by Ycar (@Ycar) [8dca282] - Sketchfab
converted it with GLTF in OBJ umwandeln (online und kostenlos) - GLTF in OBJ Konverter
and loaded it
see p5.js Web Editor
Thank you very much for your help