Any website offering a "free download" of Final Cut Pro 10.6.5 is almost certainly:
Final Cut Pro is not available as a free download. While version 10.6.5 was a specific update released by Apple in late 2022, it remains a paid professional product. 🛑 The "Free" Download Risks final cut pro 10.6.5 free download
Final Cut Pro 10.6.5 was a significant maintenance update released on October 24, 2022 Any website offering a "free download" of Final Cut Pro 10