I worked at Cycorp (not directly with Doug very often, but it wasn't a big office) between 2016 and 2020
An anecdote: during our weekly all-hands lunch in the big conference room, he mentioned he was getting a new car (his old one was pretty old, but well-kept) and he asked if anybody could use the old car. One of the staff raised his hand sheepishly and said his daughter was about to start driving. Doug gifted him the car on the spot, without a second thought.
He also loved board games, and was in a D&D group with some others at the company. I was told he only ever played lawful good characters, he didn't know how to do otherwise :)
Happy to answer what questions I can