In my opinion this project is the best effort so far to have a full Office365 open-source alternative.
And yes, if you want to have the enterprise edition, you have to accept the enterprise licenses, to have then features that contain closed source code. But this is an option, for enterprise.
I think, they can still make the claim: fostering data sovereignty.
> In my opinion this project is the best effort so far to have a full Office365 open-source alternative.
Then the effort sucks.
From my perspective as a German, this almost looks like a scam. It's a bunch of OSS software rebundled as a package by a company which would like to make money off of support for the software. Which inherently sounds great, except that their only original contribution to the software package is a mid tier project management app.
The vibe I've been getting so far, is that they're trying to resell OSS software and accompanied support, except the underlying software already has great community and commercial support (Nextcloud and Collabora for example) and to make up for that, they're getting the german government to slap a "Made in Germany" label onto the package.
I’m an American and thought the effort sucked too - I had the same thoughts (it looks like a thin wrapper around other open source code with closed source “enterprise edition” which allows for providers there to overcharge for functionality that isn’t returned to the open version).