I grabbed this snippet from Kim Komando's daily newsletter - I didn't try it so I cannot vouch for it, but perhaps it will help anyone with mobile website issues:
Mobile websites are hiding things from you: Filters, buttons, whole features. Gone on mobile, there on desktop. On iPhone Safari, open the Page Menu and tap Request Desktop Website. On Android Chrome, hit the three-dot menu and toggle on Desktop site. It’ll look tiny, so flip your phone to Landscape. Turns out the site wasn’t broken, just the view.
Mobile websites are hiding things from you: Filters, buttons, whole features. Gone on mobile, there on desktop. On iPhone Safari, open the Page Menu and tap Request Desktop Website. On Android Chrome, hit the three-dot menu and toggle on Desktop site. It’ll look tiny, so flip your phone to Landscape. Turns out the site wasn’t broken, just the view.