I've noticed this for a while and I'm not sure what the word for it is, but the encoding of certain characters is broken for post titles in RSS/XML for me. For example the title for this post https://lemmy.world/post/26952497 in RSS is:

MMO scholar puts a $500 bounty on old versions of RuneScape as part of a community archive project: ＆quot;You might have ALL of the game**＆#x27;s lost versions!＆quot;**

I use FreshRSS but it looks like this in the raw RSS output which you can get from the RSS button on the homepage. Does anyone else have this?