I’m interested in this as well. I’m work for different clients frequently and it seems like there is always so much time wasted on knowledge transfer when the client already has a system for recording these types of things.

Interestingly it seems some teams from within a company use the tools more effectively. I think it’s largely about building a culture around sharing information. Confluence is the tool I’ve seen most commonly used. I don’t have strong opinions one way or the other about it, but would like to see what tools effective teams are using