They won't add features but will fix bugs in it. Like distributions with long term support. You may ask why this matters, but I just installed 6.1 in Debian (t

They won't add features but will fix bugs in it. Like distributions with long term support. You may ask why this matters, but I just installed 6.1 in Debian (testing) a couple of days ago, and it has a fatal bug in a graphics driver I think (AMD iGPU Ryzen 5) - as soon as I start a browser in GNOME, the signal to the monitor is lost and I have to reset. I installed 5.18 in the console, and it works fine. I haven't figured out how to report the bug, but I also have a hunch that it's probably already fixed. And that's why you make these long-term support releases. You stop refactoring/adding features that destabilize the code, and just fix bugs, and end up with a well-tested fossil. In theory you'd have automated tests of everything, and then you wouldn't need these fossils. But in practice you don't.