my guess it was done to upsell the CCU seems it plays flawlessly on CCU and like **bleep** on anything else clever real clever now i hate you
The experience on Stadia depends on many factors, so if your PC experience in the Chrome Browser is not that good at the moment... can you describe it any further? Is it lagging or what exactly is happening that makes it hard for you to play?
As mentioned by @Chufu there are many factors that could affect your experiences. In my case, works fantastic and you need to ensure a good connection.