Are changes like CSS typed objects a new web standard or Chromium independently making decisions? Can we expect safari/firefox/ie to support this soon or is thi

Are changes like CSS typed objects a new web standard or Chromium independently making decisions? Can we expect safari/firefox/ie to support this soon or is this only useful if my entire userbase uses chrome? edit: found the spec https://www.w3.org/TR/css-typed-om-1/ https://www.w3.org/TR/css-typed-om-1/ so I think it's reasonable to expect parity from other vendors eventually