FORZA HORIZON 4 ULTIMATE EDITION for Xbox One/PC is a digital code with no expiry date.
Online servers remain operational, so features like Forzathon Live and daily challenges are still accessible to those who own the game. How to Get It Now Forza Horizon 4 PC Download Free Torrent
If you already own the game digitally, you can still download, install, and play it (including online multiplayer) through your library on the Microsoft Store or Steam. FORZA HORIZON 4 ULTIMATE EDITION for Xbox One/PC
The game was removed from the Xbox Game Pass library upon its delisting. you can still download
While you can no longer buy the game directly from official digital stores, there are still legitimate ways to download and play it on PC. Official Status and Access