Webflow's Ecommerce landing page uses Lottie Web, for example: https://webflow.com/ecommerce

> Let us know what you think of the intro hero animation. That was the part built in Lottie. [1]

From the tooltip on the page:

> This site was built entirely with Webflow — minus most of the hero introduction, which we built in After Effects and integrated on the page using Lottie. We wrote custom code to sync the Lottie playback with the Webflow IX2 animations in the hero, and uploaded the Lottie animation via a feature we’re testing internally to upload files (JS, SVG, etc) to Webflow sites.

[1]: https://news.ycombinator.com/item?id=16621314