Programmatic pages for 114 countries: how do you stop them looking thin?

My site has 757 URLs. 152 of them are one page per label format, each citing the regulation, effective date and region. Another 30 are free tools. It is exactly the kind of site Google can decide is thin.

What has helped so far:

Internal links. The regulation pages had a median of 1 inbound link. After adding hub pages and cross-links, the median is 6 and there are no orphans. That change alone moved crawl frequency.

Real differences per page. Titles now vary by the fact that matters on that page, not one template with the country swapped.

A real table on the hub with all 152 rows, so the hub is useful on its own.

What I have not solved: getting the smaller country pages past a few hundred words without padding.

If you run programmatic SEO, what actually separates your pages in Google's eyes?