Not Seeing Optimized Meta Tags in Shopify or Google SERPs

In my few years of digital marketing, I haven't run into this problem. A new client has a site on Shopify. Some pages have decent meta tags (ie. page title & description) written but when looking at the mozbar or even the page source, those meta tags are not found anywhere. I see tags from the shopify app: SEO Product Optimizer in the source code (for facebook / twitter) but that's it.

Even when hovering over the Chrome tab, usually you'd at least see the page title but not here....

Not Seeing Optimized Meta Tags in Shopify or Google SERPs