As an indie game developer, I can say cloud gaming troubles include VARIOUS of issues: latency, network instability, compatibility. Regular patches are also crucial to improve the overall stability of the cloud gaming platform. It may be really challenging as Yoshida said, only thorough testing, monitoring, and regular updates are key to ensure a pleasant gaming experience for players. I know it, because when my little game was on the way to Steam, I decided to use quality assurance services of software development company Ficus Technologies and it was definitely worth it! Maybe it will help someone to get rid of bugs too.