The one thing I'm missing is the brag page. Knowing GSAP I'd really like to see why it would be better. It doesn't have to be a fair comparison. Greensock can then say why they'd still be better. But as we do have options it would be nice to see where they match and where they differ.

If you read the source of both and spend 5 minutes on the issues of each and you will see that GSAP is a dated turd with more layers of cruft than photoshop and they still can’t do ESM or Typescript right even though they charge money for important features.

AnimeJS is S-tier, up there with Pixi in quality, albeit smaller scope. V3 was a bit rough but v4 has been baking for a long time.

The performance, code quality, ease of use, size, everything is worse in GSAP.

And Pixi