I had all filed PDF on Google Chrome, that I accessed from a site. The site lets you fill like
Unfortunately, I hit back from MacBook pro touch pad. Is there a way to retrieve the filled one from the Chrome cache? I know the time window.
Since you are not asking for help with an Adobe program you need to ask in a Chrome forum
If you opened the PDF file (even inside the browser) then there's a copy of it on your local computer, even if only in a temporary cache folder of the browser. However, if you didn't save it with the information you filled into it then it will be empty.