This was my first thought too. Shows how Google has trained us to expect the worst from them...
To be fair, so were Stadia users.
I'm a long time customer and have only good things to tell so far.
It appears based on my playing around with it that the data is actually traveling into Firebase successfully, but there is not the slightest shred of UI nor onboarding docs for "hello, I would like one cloud debugger, please"