Sure, many major sites use it, such as Zoom, Google Sheets, and Photoshop. As the article mentions, you wouldn't know they are using Wasm under the hood unless you open the devtools and inspect the details.
Many more examples, such as those mentioned in this talk about Wasm usage in Google:
They mention Google Photos, Google Meet, Google Earth, TensorFlow.js, Ink, CanvasKit, Flutter, etc. And that is just inside Google - many other companies are using it, big and small, such as Figma, Unity, Adobe, etc.
What parts of Figma though? Is it just used for cpu intensive operations like triangulation of svgs to render in webgl or is the site's core logic all done is wasm?
I'm sorry, I don't use Figma but I'm really curious about its tech stack
Yep, they compiled Stockfish to wasm. Now everyone has access to the best chess engine in the world, right there in the browser, no need to install anything. Really nifty.
Many more examples, such as those mentioned in this talk about Wasm usage in Google:
https://www.youtube.com/watch?v=2En8cj6xlv4
They mention Google Photos, Google Meet, Google Earth, TensorFlow.js, Ink, CanvasKit, Flutter, etc. And that is just inside Google - many other companies are using it, big and small, such as Figma, Unity, Adobe, etc.