The biggest cloud gaming services up until ~1-2 years ago were Geforce Now and Google Stadia (RIP). Xcloud gaming or whatever they call it today was extremely poor (latency and UX issues) and in limited beta, with a very limited library.
Nowadays Stadia is dead, Xcloud is kind of usable under the condition you use a controller (which makes it a non-started for pretty much any non first-person game) and pay for Game Pass. Geforce Now is still going strong, has much better and stable quality and is the gold standard.
Nowadays Stadia is dead, Xcloud is kind of usable under the condition you use a controller (which makes it a non-started for pretty much any non first-person game) and pay for Game Pass. Geforce Now is still going strong, has much better and stable quality and is the gold standard.