You actually need double the temporary space to install the game. Steam does not download the files directly into the final folder. It downloads compressed archives, decompresses them, and then deletes the archives. Therefore, if your drive has only 190 GB free, the download will fail. You need roughly 210 GB to 220 GB of free space before hitting the install button.
The download size for God of War Ragnarök on PC varies slightly depending on the platform you use (Steam or Epic Games Store) and the region, but the numbers are consistent across the board. God Of War Ragnarok Pc Download Size
Happy hunting, Kratos.
Note: These numbers can vary by 5-10GB depending on language packs (voice-over files for different languages are large). You actually need double the temporary space to