There isn't going to be a Windows 11. They're just going to keep updating 10 indefinitely.... We'll see.
Well, basically, what they're trying to do is just plain kill the PC. We already know MS doesn't WANT you to keep using the same OS forever because there are 10 examples of them trying to make you pay them more in the past.
So when they say "indefinitely" they just mean until the PC completely goes away. Which is why they threw their weight behind the new interface. They were basically announcing their intention to abandon the desktop market. There isn't gonna be a Windows 11 because people won't be using desktops anymore by that time.