Hey, I'm having this issue as well. The most perplexing part to me, is that it works on one of my apps, and not another. fixed bg attachment works on mobile (iphone 13pro) here: https://blog-next-js-sigma.vercel.app/ yet it does not work for another app i'm working on. I'm a fairly new developer and I built that by following this tutorial: https://www.youtube.com/watch?v=HYv55DhgTuA&ab_channel=JavaScriptMastery i definitely slowed it down by adding a backdrop blur to all my translucent components... but bg attachment fixed works. there is a link to the tutorial github on their youtube page