Yes, you can collect visitor behaviour on a Shopify storefront with a compatible tracking installation. Hotjar is now part of Contentsquare: its familiar heatmaps, recordings, and feedback tools continue there. Follow the documentation for the platform your account uses, and check checkout coverage separately. Read Hotjar's product update.
Choose CROtrustify when you need a quick, repeatable inspection of visible Shopify trust and conversion friction before you have enough traffic, or before deciding where deeper research should begin.
Choose Hotjar when you need evidence of what real visitors click, ignore, revisit, or struggle with, or when you want to ask users for direct feedback. Heatmaps, session recordings, and surveys help investigate behaviour on pages where collection is supported and correctly configured.
They are usually complements rather than substitutes: the audit creates hypotheses from the storefront; behavioural analytics, surveys, ecommerce analytics, and customer research help confirm or reject them.