Here's an example of a page with a lot of animation that respects reduced motion settings.

Donkey Kong™ Bananza for Nintendo Switch 2 - Nintendo Official Site

Buy Donkey Kong™ Bananza and shop other great Nintendo products online at the official My Nintendo Store.

I'm trying to audit a website but all I can do is stare at fucking loading spinner because there's something wrong with the JavaScript. Using client-site rendering for a regular non-application like website is a sign of incompetence because you don't know what's best for your users.