"I've found that the tool doesn't matter as much as the company culture. "

I think the tool choice doesn't matter much but having a well defined tool or process helps a lot. In my company it's never clear where to our documentation or where to find it. So every time you have to think about this and often don't get started . In my team we have started using OneNote for everything and now we always know where to put things and where to find them. Suddenly documentation is getting better and is actually useful because you can find what you need.

Previously we used SharePoint and data just went into it and disappeared to never be seen again. Totally useless.