No. GTA 5 left Game Pass in 2023. It is currently not available on Microsoft’s subscription service for PC.
The most common "demo" downloads are actually Trojans, ransomware, or miners designed to steal your data or use your PC's resources. Phishing Scams: Gta 5 Demo Download Pc
Let’s walk through the exact steps to legally play GTA 5 on your PC to see if you like it. Gta 5 Demo Download Pc