Difference of This and the Core WordPress?

So from what I understand the Gutenberg plugin is more like a beta testing version, while the core contains a stable version.

Does the WP version have bugfixes like the Gutenberg plugin when it is freezed. What I mean, I do understand there are no new features, but does it receive bugfixes within the same WordPress subversions or it does not?

What I am trying to say is that maybe the plugin is not freezed, it gets new features, but it also gets bugfixes, which WP doesn’t get on time until the next WP subversion?

Where can I read a more human-friendly non-geek information about the gutenberg versions and their updates? I watched the development logs but I need something like this one https://yoast.com/three-new-features-in-gutenberg-6-5-and-more-on-wordpress-5-3/ for versions 6.6, 6.7, 6.8.

I do get the idea Fedora – community, beta, non-stable uses users as beta testers to release Red Hat Enterprise Linux – stable, older versions, etc.

However, I don’t get why the version gap is so big.

Also what I don’t get is why some fixes, but not all fixes go to the WordPress Core when they are released.

My understanding would be that if the core must be stable, secure and patched it should always contain fixes which are released when they are released for the current version of the plugin.

For example when MacOS Catalina has a bug, it gets patched, but if it affect previous supported versions of the OS, Apple would path *on the same time* the older versions as well. Yes, older versions do not have new features, but they get patched right away.

If the WP Core version is not patched right away, then what it is the point?

Would you consider Gutenberg plugin ever to stay always as a separate plugin? I do remember the times when plugins were merged into the core and the development of the plugins as separate ones ceised to exist if I can recall that correctly?

Also regarding release posts. I do really think for regular non-geek, non-programmers, typical users for WordPress, they have to have release posts like this one – https://wptavern.com/gutenberg-6-7-introduces-storybook-and-gradient-backgrounds or the ones that describe WordPress releases in a human language highlighting the main changes with a link on the bottom for the geeky and developer changelog where all the technical details are shown. Right now I don’t see these human friendly release notes.

Just because someone wants to install the plugin, doesn’t mean he’s a geek and can check the WordPress trac system or something, he needs to be able to see things like a regular human being, like the posts of the new versions of WordPress that you do.