This was a Spring Thing game in the year I started participating in IF (2015), but I never played it originally.
It's a poem that seems to have a lot of autobiographical parts (although of course it could just be written that way). Lines of the poem can change if hovered over or clicked, and icons can appear, or words change into icons or images.
The poem (and some prose elements) is about Doggerland, a place in Northern Europe that is now submerged under water. The game also mentions things like IVF, body dysphoria (briefly), global warming, etc.
I thought it was really well done. There is one choice, as far as I saw, but a lot of interactivity.