@morganestes normally I can just take a Mastodon url and drop it in a new block, then WP will auto-embed it.
Interestingly, I wasn't able to do that with @cplong's post. Playing around a little more, I think it's maybe a difference in how our instances are set up. I'd love to know more about why posts from my instance embed, while others won't.
The embed from hcommons.social did show the text, but the embed was all broken, so the user icons were huge at t the top.