Digital Foundry is even changing their minds now.
From cloud gaming can never work (2011)
https://www.eurogamer.net/gdc-why-onlive-cant-possibly-work-article
to
https://www.eurogamer.net/digitalfoundry-2023-cloud-gaming-can-work
It's not just improvements in infrastructure and faster hardware that will make it possible. Better compression and image reconstruction techniques will reduce data needed and fill in / smooth out stutters. Predictive AI can help reduce latency and reprojection techniques from VR can further reduce any observable latency.
The gaming landscape will look a lot different in the 2030s...