Ask HN: What's the best approach for displaying data tables on mobile?

I’m working on a web app with some fairly data-heavy tables (think product inventories, user lists, analytics dashboards, etc.) and the mobile experience is pretty rough. On desktop everything looks fine, but on phones it’s a mess. I’ve tried just letting tables scroll horizontally but it feels clunky. I’ve seen some apps convert tables to card-style layouts, others use expandable rows, and some just hide columns. What patterns have you found actually work well in production? Any libraries or examples you’d recommend checking out? Bonus points if you’ve done user testing on this and have data on what users actually prefer.