It’s not just UI wise.

They explain it on their website : their internal logic for a document is based on OOXML logic, while LO is rather based on a ODT-based logic. So compatibility with Office is more straightforward in OO (though we know Microsoft is not quite exactly following the OOXML norm, so still not perfect…)

What do you mean dictatorship? It’s a “special military regime”! 🤡

This happens right as the Museum is going through a crisis following a cyber-attack this summer… They are still recovering from this in terms of IT. I’m not sure how related it is, but it could be that their security got impacted, and the thiefs knew it.