Well, we had Windows 10 for over 5 years before Windows 11. 10 was supposedly the last version they were doing, so it's a little surprising they're back to regular major releases now.
Too many people turned off telemetry data. They couldn't get enough of it to just upgrade under the 10 banner. They're forcing more and more online bits and slowly not letting you turn the other stuff off.
2-3 years is actually a reasonable time for Windows releases, going by historical dates. I think we're all used to the long gap between Windows 10 and Windows 11
For home use, maybe. It will upset corporate customers to no end with a 2-3 release cycle. The app vendors won't keep up, keeping the workplace a mess and well behind the new release curve. Deal with this on the Windows server side of things all the time. We're trying to drag our app vendors off Windows 2012, and they are only coming kicking and screaming. Most only support up to 2016, which we find insane.