I wrote something about this pretty recently - a pitch/anti-pitch to these sorts of guides. I do think the tl:dr is that you need a high level of psychological safety in the team to make it workable. Although I think the act of writing one can be a useful exercise in itself, I certainly hadn't thought deeply about what my preferences are for work. It also gave me some ideas of what I could work on personally.

https://medium.com/better-programming/personal-user-manuals-... <- scroll down for the pitch/anti-pitch :)