No. Those videos are scams. They often use fake downloaders, surveys, or link to malware. Report them.
: If you are a member of Xbox Game Pass for PC, you can download the entire collection, including Halo 3, at no additional cost. PC Version Key Features Halo 3 Pc Download Free Game Full Version Highly
By earning points through Bing searches and quizzes, you can redeem Microsoft Store gift cards and buy MCC without spending cash. It takes time but is 100% legal. you can download the entire collection