The software version number is technically fully arbitrary. Their meaning was decided by the developers and no one truly could enforce one, especially if there was no standard that defined the practice. Microsoft can contact the next Windows release Windows 7432.1123.1 and there are not many people who can do it.
At the same time, the version number also conveys some meaning even to the end user. Some, like the Ubuntu version scheme, shows when the special version of Linux distribution is released. At least, the numbers signal the progress or milestone achieved. Even the Google Chrome Rapid release still means something big has changed every time the version number increases.
Considering how long Windows 10 has existed, crashing the version number to 11 shows something big will come. Given the Rolling Windows 10 release cycle, you will assume this is not only something like version 21h2. Unfortunately, based on what we see so far, maybe exactly like Windows 10 21H2.