You can probably safely assume the 3-letter agencies are snooping on this data. It is and has always been very hard to resist government pressure. Happens all around the world, China, Russia, EU; all the geopolitical players find various means of eavesdropping where they can.
Also likely part of why ECH is taking such incredibly long time to see widespread adoption and why it's still quite a shit solution to SNI. As it stands, anyone with network level access can see which websites you are visiting, despite HTTPS.
From a former Stadia user; latency was never an issue or noticeable with a 4K stream. And I've played quite a bit of fast paced shooters in the platform.
The experience is extremely dependent on location, bandwidth, local setup and availability of close services (in my case, the closest DC was <15ms away according to Stadia telemetry).
His process is impressive, no sketches or hesitation; he just "prints" whatever was in his mind. The scenes are incredibly detailed, with complex perspectives
Gaming companies rendering games you paid for unusable is a real problem, just as much as planned obsolescence occuring in everyday items.
Screaming children? Really? Most gamers are over 18 and there's billions of them.