OnlyOffice doesn’t like open document formats though.

Ok.

It’s an official language of their country, why wouldn’t they learn it?

It’s as stupid as saying one shouldn’t learn English because it’ll be displaced by Chinese or hindi anyway.

It’s ok, you don’t have to learn French, nobody’s forcing you.

Ok, I mistyped, it’s three hundred million. Don’t know where that thousand came from. :)

There are over three hundred thousand million people speaking it. On all continents. It’s fairly useful. Maybe you should travel more.