Across the 6 companies in the tech space I've worked in over the years (ranging from 500 - 200,000 employees with the median being 10,000) have been GSuite/Google Docs for their word processing need but with various wiki software (most notably confluence) overlapping quite heavily too.

Yes, but tech is special. And even in tech I presume you're only talking about computer tech, or even more specifically software tech? There's the entire rest of the business world which uses Word because what else would they use? Nobody ever got fired for buying Microsoft [sic]. Every single OEM computer aimed at businesses is likely to have Office preinstalled, except these days it's the 365 version.

I am encountering it almost not at all. I work in a org that basically doesn't know that Linux exist and outside of top management nobody uses Word. Excel is still massively useful.

Google docs exclusively.