Since Google dropped support for rel=”next” and rel=”prev”, the best way to handle paginated category pages is by using self-referencing canonicals. This helps Google see each page as its own, so products on pages 2 and beyond can still get indexed. If you canonical everything to page 1, those deeper products might not show up in search at all.
Also, if you’re using infinite scroll for a smoother user experience, make sure there’s a crawlable fallback (like /category?page=2). This way, Google can still find and index all your content, even if it’s not visible right away.