LibreOffice and and OpenOffice are close, but usually a generation or two behind MS Office on some key features. I think with a little funding from EU (and other) governments they could quickly catch up and surpass the competition, if you will. I used it in the past for desktop publishing and writing, but had to go back to MS. i would love to transition back to Linux 100% personally. I hate SAAS, I hate being spied on and served ads, and not being able to own what you buy, don't want to use the cloud at all and MS, Adobe etc. like most of the US big tech firms, is a great big trap in so many ways.
It's bad enough for individuals, but it's a real problem for European governments to be so dependent on this software. To have some degree of autonomy they need to develop the alternative, and I don't think it's out of reach.