In my experience some games are just very laggy, where others appear "optimized" for Stadia network. I can't put my finger on it, but my comparisons come from playing the same title on PC/Steam. Cyberpunk seems to have none to very little lag. And that's playing with the chrome cast device on my wireless, Chromium on Linux via ethernet and Chrome on macOS. All platforms work great with Cyberpunk, but Destiny 2 is another story.