First of all, try to keep things respectful. I think you will not get many responses with that kind of language (assuming Google Translate translated it correctly).
Secondly, I guess it depends on the platform.
On Windows, downloading shows the progress bar on the Windows taskbar button of Chrome as a highlight type of thing. Also, there is a setting to let you decide where to save before downloading. The toolbar downloads button also shows the progress. Once the download is done, a bubble usually pops up to let you know and you can open it from there.