Nice idea. Where did you get your models from? I wanted some similar models for my game and normally get stuff from https://poly.pizza/ but this week didn't find many suitable "granny" or "supermarket" type models. Some models showed up in pink though. Perhaps you need to use the render pipeline converter? Also, on the settings screen you have options for VSync and Full Screen, but they don't appear to do anything on the WebGL build.
Viewing post in Granny Turismo jam comments
Cool! I've tried ChatGPT for making models before but it was really bad. I also highly recommend meshy.ai. I've used that before alongside mixamo to create models and animate them for Unity. See Flora and the Lost Letters and Flora Goes Home.