The phrase you used is common on sites offering "free full version" downloads, but . Most sites promising direct free downloads of paid games are actually hosting malware or phishing scams.
If you have Amazon Prime , check Prime Gaming . They have given away the full PC version of Origins for free in the past. It is also frequently available on PC Game Pass or Ubisoft+ , which are great for playing through the full story (about 30–85 hours of gameplay) for a low monthly fee. assassin-s-creed-origins-free-download-pc-game-full-version
If you're looking for a way to play or get the game, here are your best bets: The phrase you used is common on sites