You had me at "nothing".

I do use the add-on Grammarly in Word. I would very much like to still have that.

I wonder if they will add support for it.

That's the only thing really keeping me using word. Plus right now I'm still a student and the university pays for my subscription.

Once I graduate I won't be paying their ridiculous subscription.

We have not implemented integration of copilot into SharePoint. Without that, another AI makes more sense for my job.

I tried to like softmaker. However I use a Dvorak keyboard layout and they could not get keyboard shortcuts to work with non qwerty keyboards. Finally ended up abandoning them. On libreoffice now.

Onlyoffice and libreoffice's interfaces are night and day. Libreoffice gives more control though.

think only office has a lot of collaborative functionality that libreoffice doesn't.

It’s indeed an OnlyOffice fork. I guess they want to play safe, considering that OO is Russian based.

The intent is to replace MS Office in government use, so it's necessary for the EU to maintain its own codebase. The whole point is reducing government dependence on foreign-controlled software. The only way to accomplish that is to create your own self-controlled fork.