I havily use llms for internal communication. I receive docen request per day from colleagues asking me very specific stuff by mail or teams about processes, setups, master data, my particular experiences with approaches, for contacts within our big corp or just general knowledge questions and how I would recommend to tackle certain problems: Setting up conditions in sap, where to find certain info or just send them…
It also sounds like you were overworked and when you started to use LLMs you've stripped yourself of the chance to work with a colleague.