A delightfully presented dive into the state of those common patterns for which we've developed JS libraries and can now be entirely replaced by modern #CSS : https://blog.gitbutler.com/the-great-css-expansion
The Great CSS Expansion

CSS now does what Floating UI, GSAP ScrollTrigger, Framer Motion, and react-select used to require JavaScript for. Here is exactly how much that saves, why these libraries were painful beyond their size, and what the platform still hasn't figured out.

Butler's Log