User tester says rotational parallax background not working on laptop but looks fine on mine

Hi - it works fine on my laptop but my friend says it doesn’t move on his laptop. Is this just his laptop or is it something I’ve done/not done?

Also the ‘Left Cloud’ layer keeps jumping forward whenever I exit and re-enter the project. I’m not sure if this is just for me or if this happens when someone else opens it too.

Here is my public share link:https://preview.webflow.com/preview/argun-dc-c1097dad7ca66277-92a5a4c1f0d4e?utm_source=argun-dc-c1097dad7ca66277-92a5a4c1f0d4e&preview=148f062ab89f8b6c805df5818bb96946

When attempting to determine why something works or doesn’t with websites, you need to know the device particulars (OS, browser, browser version) at a minimum. Then you can test.