GSAP is a bit more robust than anime.js. Over the years anime has been adding more functionality and changing its syntax to be more like GSAP's. They're both solid libraries though

I only discovered GSAP the other week, very quickly solved a complex animation problem and walked away quite impressed.

Now I'm looking at AnimeJS and my mind is properly blown, looks even better.

Serious question, is this a joke? I just see a black screen when I go to the site. I refreshed multiple times. Cleared cache. Just a black screen.

You have probably disabled WebGL in your browser.