If you hover over them, you can see that it shows the right domain for the link, but it reloads the page if you click it. And in localhost, I have now noticed that the links are not relative. Every other link on the homepage is relative because I have entered them as relative in the Gutenberg editor. But according to the documentation, the processor should turn absolute links into relative.
The GitHub repo:
Is it a bug with the processor, or am I doing something wrong?