Actually yes! I’m in an odd spot where I left for a couple years for another job and came back to the same company. Not only was the tech that was in my place while I was gone grateful, he actually continued to add to it so that when I came back, there wasn’t a whole lot I had to update!

I've been the recipient of such a document, and I was absolutely grateful. I've also been the recipient of absolutely no documentation. And I've written one and had it be appreciated when I laterally moved positions, which the 3 people who replaced me appreciated.

Depending on the enterprise environment and role, it can take up to 2 years to fully learn the system without such a document. Especially if it's an esoteric field.

NOT NEVER