> I was sad to see it left out of 2022-interop, but it's definitely the biggest feature I'm waiting for My understanding is the features for Interop were chose

> I was sad to see it left out of 2022-interop, but it's definitely the biggest feature I'm waiting for My understanding is the features for Interop were chosen because there wasn't good interoperability between browsers for them. With CSS Nesting, once the spec (and the syntax) is finalized, it's going to work the same in all browser engines; hopefully it'll go smoothly and we won't need CSS Nesting be part of Interop 2023.