Firstly: Kudos on the text-only version. You may want to convert it to a single column as some screen readers struggle with multi-column formats.

The roll-under attribute mechanic here is an interesting choice, and something I'm always personally conflicted about: on one hand it's an easy way to have higher attributes = greater mastery without having to do any math, and on the other I find that folks can sometimes struggle with roll-under because it goes against the ingrained impulse that "higher is better." Regardless, it shouldn't take folks long to grok and get into the rhythm of it, and I think it's a great simple way to handle resolution.

The attributes (Swim, Song, and Solve) are great, and the GM support is solid and super appreciated. I'm still not convinced about having the Seen mechanic force folks to abandon the town as that can result in a Player having to sit out for a potentially long portion of the game; as a reference to Honey Heist it makes sense, but that's also one of the things that I personally dislike about Honey Heist.