The french gouvernement publish LaSuite recently https://lasuite.numerique.gouv.fr/#products They only host it for themself. And this time it's quite good because they don't try to reimplements stuff, they reuse some existing open source project. The repository for this : https://github.com/suitenumerique/

What/who is "European-owned"?

Yes you've posted this project multiple times now. Its slightly misleading, because there's not a full company behind it, but only one dude. Its self-hosting LibreOffice iirc.

The project itself is fine, I'm sure some people want this, but its getting annoying to see this every week, and its even more annoying how not transparent the website is about the company's situation.

Good luck on the project, though.