Hello, Marquand,
Sorry for the delay in answering.
Reply times can vary from time to time and be up to 24 hours Monday – Friday and up to 48 hours on weekends, Sat-Sun. But is usually faster than that. Please, do not submit multiple topics for the same request, as this does not result in a faster response time.
We’ve set 3 products on pages that you provided https://prnt.sc/5pccJs3I4XMu and checked from a real mobile device, it shows 3 items per row according to settings without any problem.
Best Regards,
8Theme’s Team