The state of Schleswig-Holstein is consistently relying on open source

I work at MSFT. I understand why they migrated to LibreOffice. Outside of work, I use none of MSFT products.

I do have some burning questions though, 1. How are they saving their work to the cloud if they use LibreOffice ? I don’t think it offers the same functionality that M365 suite does. 2. How are they handling IT security? Are they using a different vendor ?