We use a combination of a couple of things, but 90% of our documentation & knowledge Management is in Quip (we have a wiki too but don't really use it). I star

We use a combination of a couple of things, but 90% of our documentation & knowledge Management is in Quip (we have a wiki too but don't really use it). I started off disliking Quip in some ways but 90% of that was our initial poor organization of the documents, e.g. no standard. But once we started categorizing and standardizing the structure it made it much easier to deal with. The search function is also pretty good, but it will still sometimes fail to find documents I know exist and I know I have permissions to. Quip makes collaboration super simple and a no brainer to have a distributed team work on something together with comments, basic change tracking etc. It also is nice cause you can access it anywhere and from basically any device, which just makes it easy (document linking is helpful too). We used to do a standup document (in Quip) daily for our distributed teams so everyone could update each other without having to worry about timezones etc. Works really well for that, and also let other teams peak into status of other teams really quick which is nice because you can do it on your own time and without interrupting anyone.