Auto-generated canonicals are setup in site dashboard settings, I think on the SEO tab.
Webflow changed paginated canonicals to include the pagination querystring, about 6 months ago, but it seems either way, tools like AHREFs will complain.
Your best strategy here is;
- Set your canonicals
- Ignore AHrefs
- Realize that Google doesn’t depend on these signals
- Invest your attention in more valuable pursuits