OP, have you considered writing while you're on maternity leave? You write well, and are incisive and funny.
There's something about all this that doesn't ring true to me, though. I'm not in the business world, but DH is the comparatively new CEO of a big organisation objectively, he's very successful, especially when you take into account that he's (we both are) from an extremely poor background, and a complete 'misfit' in social class terms with the level he works at and in his field in general and inevitably, as he's WFH, I hear a lot of his meetings and phonecalls these days, when I am also WFH.
No one, and I mean absolutely no one, ever sits around praising anyone. I would be surprised if anyone has ever told him he's 'wonderful', even once, in a professional context, whether they're the people who hired him, the board, the headhunters, his colleagues, his PA etc. If he behaved the way you say your DH is, with all the boasting and need for continual validation and compliments, he'd be a laughing stock in his industry. As he would if he said he was regularly working till 2 am -- he'd be viewed as unable to cope and inefficient by his peers.
Don't get me wrong, DH isn't in a 9-5 job either, but he recognises he can't let his job encroach on my life, or DS's.
I recognise the busy-ness and the stress, sure, but I don't think that kind of self-validating, obsessive behaviour is normal at all, unless your DH's job is something that requires continual self-promotion, like some kind of influencer! What are these 'odds' he believes are against him?