Just a test on Nostr: I tested this. In Amethyst the link preview shows a thumbnail, but in Primal it does ...

I tested this. In Amethyst the link preview shows a thumbnail, but in Primal it does not — similar to what I see here in Yakihonne. I would like to use Yakihonne as my default Nostr app, but I’m trying to understand why there is no thumbnail preview when I share a link.