Permissions of the module are set to page permissions. Page permissions are set to show to "All Users". Nothing stands out as far as I can tell.
Products have no special permissions attached. All are public.
Product view is set to standard index. Nothing changed yet in the view. It's a copy of the standard viewset.
Hotcakes URL Provider is active. All other URL Settings in screenshots:
https://d.pr/i/jBEGgY https://d.pr/i/YXvGAa Thank you 🙏