I used to work a very small org with an 80+ year old CEO. I feel like half the time the slide decks were unchanged and very little was getting done but I'm not sure the CEO noticed. Given the CEO often sidelined those meetings themselves, by having some bizarre senior moments. So what should be a 30m meeting always became a 2hr+ long one. The guy used to be technical but as you describe it had slipped away from him a long time ago and he had failed to delegate effectively.
Those meetings felt like my real job was just theatre for the boss in some sort of quasi-nursing home stage, where we helped them maintain the illusion they were running an entirely functioning business. I half wonder if in my short time there, I was a mug for actually doing any work.