I don’t understand this since they’re both Hugo blogs, both using markdown - why would it truncate the post and lose all the formatting? Is this a problem with my blog? Or with micro.blog?
The RSS feed only contains post excerpts with HTML stripped. Here’s what the post from your example looks like in the feed:
<description>Trying to learn about computers at the age of 48 is sometimes hilarious. Me: Okay so how do you learn terminal commands? Is that the CS50 course at Harvard? Because I don’t really enjoy programming so I’m not sure if I should keep going with that - do we learn other things later? Is that where I’d learn terminal commands? I can skip ahead, it’s a free course. Greg (husband of 27 years, software developer): Probably, yes, they’ll get to that.</description>
The person(s) who implemented the default Hugo RSS template decided to only include post summaries. To fix this, you will have to override that template with your own and include entire posts: HTML and all.
To anyone ending up here in the future: this is a feature specific to the PaperMod theme. It already provides a custom RSS template with support for full-length posts. If your blog uses another theme, the ShowFullTextinRSS parameter might be named differently or not exist at all.