Well, I've used both GLFW and SDL and can say SDL is more robust, covers more edge cases, etc... And he specified he only wanted an answer from someone in the know, so probably no one here anyway.
Also it's weird complaining about slop when HN is 99% slop, and has been for a long time. It was only interesting from 2008-2016 or so.
It’s entirely possible that Mojang has a blog somewhere with more detail, or maybe a dev tweeted something, that would be the type of useful info that could exist that someone more familiar with Mojang might know.
Ok so why are you still here?