You cannot access official multiplayer (The Eliminator, Horizon Open) or sync progress with Xbox Live.
If you are looking to install this, I can help you with or optimizing your PC settings for better frame rates. forza-horizon-5-premium-edition-v-1-527-960-0-dlcs-repack
Provides double credit rewards, vanity items, and exclusive cars. Welcome Pack: 5 special pre-tuned cars and a player house. 🛠️ Understanding the "Repack" Version forza-horizon-5-premium-edition-v-1-527-960-0-dlcs-repack
Rally Adventure (Rugged terrain and specialized rally mechanics). Car Pass: Adds 42 extra cars to your garage. forza-horizon-5-premium-edition-v-1-527-960-0-dlcs-repack
Unofficial sources may bundle malware or miners within the installer. Always verify the source's reputation.
Hot Wheels (Gravity-defying tracks in the clouds).