Paginated pages should self-canonical, each page pointing its canonical at itself, not at page one. This runs against a piece of advice still wired into many SEO plugins, that every page in a sequence should canonical back to page one to avoid duplicate content. That advice is outdated, and following it can quietly drop your deeper pages from the index.
The reason is that the pages in a paginated sequence aren’t duplicates. Page two of a category lists different products than page one, page three lists different ones again, and so on; the template repeats but the items don’t. When you point all of them at page one with a canonical, you are telling Google that page one is the real version and the rest are copies of it, so the products and content that appear only on page four have no canonical home and can fall out of search. Google’s own pagination guidance says this plainly: don’t use the first page as the canonical for the sequence, give each page its own. Pointing everything at page one only makes sense in the narrow case where you truly don’t need pages two and beyond to be found on their own.
So set a self-referencing canonical on every page in the sequence, page two to page two, page three to page three, then confirm in Search Console that the deeper pages are still indexed rather than collapsed into page one. If your platform canonicals pagination to page one by default, override it, because that default is the thing removing your deep pages from search.