Thanks! I don't have Opera installed on my Win11 machine, but I tried it in Edge and it's barely using anything, but I realize that I have something beefier than a shared GPU on it.
I've filed a bug internally and we'll make sure to take a look. We don't use these animations in the product, only the company site, so this is the first time it's hitting a broader audience. I appreciate the report and sorry about that!
Firefox on win11 here, scrolling the page is super choppy and it pegs my GPU at 100%.