You can use Grey rock as a long term solution as well. It's used when you have to deal with someone personality disordered who will create drama or use what you say against you. I used it with my mother for 40 years. You don't tell them anything of interest and you make yourself as grey which means as boring as possible.
With my mum, I talked about the weather, road works, traffic, news items, politics but never about me and I never really gave an opinion on anything or she would use it to start her dramatics or store it up for use later. Sometimes if she was in a mood, me picking up the phone and saying 'hello' was enough for her to start but we are nc now.
OP I guess you're both working from home and he never leaves the property at set times, so you can't arrange viewings yourself without telling him or arrange online viewings which would be showing someone around the property online and then arranging a real life viewing when you know your husband is not around.
You need to avoid interaction with him and simply tell him nothing about yourself. Keep things light and if he starts, as some will grab onto anything to start an argument then leave the room. I assume you're in separate rooms, then get a lock for it.
Are you getting any mental health support? Can you arrange counselling online? You can do it in the car for privacy if you need to. I would focus on getting the house sold ASAP so you can get away from him.