I feel your pain @Longingforsummer583 and I have a very similar DH. Never goes out without me, has no friends, has no hobbies or interests, and no family - except me and our DC who left home in the mid 2010s. Luckily he works part time, but he does permanent nights, and only does 3.5 days a week - 4 one week, 3 the next alternately, but he is often up at midday. I don't get a huge amount of time to myself (at home) as I work too - WFH. 22.5 hours a week.
When he is home I find it SO HARD to concentrate on my work, and thankfully I can be quite flexible so can do my hours when he is working, or in bed. He is so lazy and just watches TV all day too. He goes batshit if his favourite show isn't on and is obsessed with TV and watching films. I reckon he watches TV on average - 9-10 hours a day, (on days we don't go out!) and is obsessed with watching EVERY news programme... and is also obsessed with watching shows from when he was a kid - the 1980s and 1970s.
I get away from him by going to social groups/hobby groups, and also occasionally fantasize about him not being here. I can't leave as I cannot survive alone financially and I have nowhere to go. I am too old to start over, and I wouldn't want to ever be in a relationship again anyway. I also have no intention of struggling financially, which I would do alone.
He has tendencies some days to follow me around like a sheep when I am trying to do something, and is SO annoying. I have to tell him to shut up and go away. It's like scolding a toddler! He sometimes chatters over my TV shows, and also when HE is watching something, he chats over that and gives running commentaries. I am dreading retirement and having him stuck with me 24/7. Lockdown was a struggle, having him here 24/7 for 6 months.
I know some people say men should be entitled to their home as much as women - but no they shouldn't, because men dominate the entire household. They are so loud and overbearing, even their fucking sneezes and snoring.. Their presence is just more prevalent and takes over. They follow you about and they won't stop chatting shit. Women don't do this to men. And to make it worse, they hardly ever lift a finger to help and hardly go out. Hilariously, when the kids were at home, he was hardly ever in, and I was may as well have been a single mum. I did everything. Yet now I cannot get him out of the house.
Oh also, he never stops whingeing about his fucking ailments. Every month a new ailment and constant visits to the GP and specialists and clinics etc etc etc. They never find anything because fuck all is wrong with him. He is in his mid 50s, and has acted like a 107 year old since his late 40s.
I know I will get 'OMG - LTB' comments, and 'why do you stay?' and 'you don't sound like you like him very much!' and the like. (Or even 'your POOR HUSBAND!') Knock yourselves out. Makes no difference. I won't leave. Even though he is annoying some of the time, we do get on OK, and some women have much worse husbands, and we have a good time on meals out, day trips, and holidays, and generally when he is occupied and has something to think about other than when the news is on next!
And maybe it's partly my fault for being intolerant, Also, I like my life. Comfortable financially, house paid for, good amount of savings, car of my own, cushy well-paid WFH job, friends, lovely area I live in, and I am not leaving and living in poverty. I just manage it - my DH being so annoying sometimes - and try to have some life away from him. I WISH he would find some friends and get some hobbies. It would be SO much easier to tolerate him, if he wasn't ALWAYS FUCKING THERE!