I understand you're looking for a review about downloading Office 2019 for free. However, I should clarify that Microsoft Office 2019 is a paid commercial product. Downloading it for free from unofficial sources would likely be piracy, which is illegal and risky (malware, no updates, security vulnerabilities).
I tried downloading "Office 2019 free" from a site offering a crack. Huge mistake. The installer was bundled with adware and a cryptominer that slowed my PC to a crawl. My antivirus flagged multiple threats. No actual Office suite worked. Save yourself the trouble – either pay for Office, use the free web version, or switch to LibreOffice. This route is nothing but headaches and security risks. download office 2019 free