In addition to appdata previously, check that your game's install directory looks something like this in its \Data\ folder. If any folders named 'Mods' or 'Public' are there (loose mods), delete them.
My game files are IDENTICAL to what you posted. Fresh Install. No MODs or Folders on BG3 Save Game date folders
Here's a clearer example. Plus the name tags for things on the hotbar is a pill-shaped placeholder.