WordPress: Gutenberg

In brief: I tried to use Gutenberg for that, and it's fucking garbage. It repeatedly failed to load, just a blank page, and then after a couple tries it came up. It recognizes pasted-in Markdown, but doesn't let me write in Markdown. It makes half the window unusable whitespace instead of more editor. So I've installed the Classic Editor plugin. Why the fuck would they make their editor less usable?