If you want to read the actual law as published, that's another commercial service (Bundesgesetzblatt, run by Bundesanzeiger Verlag), and there, the company claims protection rights as a database work. You are expected to buy a subscription if you want to print or search the PDF files they offer for viewing, or apparently for any kind of non-personal use. Unlike gesetze-im-internet.de and despite its commercial nature, Bundesgesetzblatt is an official federal publication.
According to https://www.gesetze-im-internet.de/impressum.html is "just" providing the technical infrastructure(?).
There is also dejure which is 100%.
Am I missing something.
The commercial Bundesgesetzblatt is a scandal indeed
I think producing consolidated text is viewed by large parts of the legal community as “just typing”, similar to early attitudes towards programming, which is why few people care. Most of the controversy around juris is about access to court decisions.
The city of Berlin has their own version, although I find it unusable. It's slow, and hard to reliably link to.