Absolutely no way.
It nearly killed my 26 year marriage DH working from home that first lockdown, I’ve always WFH and have been used to having the house to myself.
Suddenly he was there all the time, with all his equipment spread out on the dining table so the house a mess for months.
Talking loudly on calls, every time I turned around he would be there wondering what I was doing or eating.
Rubbing up the wool on the rug with his chair and leaning back on it so the back knackered.
Going out for mid day walks and boring me shitless with how many steps he had done.
Aggggh.
We laugh about it now, but at the time it was murder and I had my own office two floors above him. Communal areas like the living room and kitchen were free.
He was glad to go back to the office and I waved him off a little too enthusiastically.
He is being completely and utterly selfish and unreasonable to expect to monopolise the living room and even more so when he has a spare room.
Fuck that, if he didn’t clear it out I would and the power adapters would be unpacked and plugged in and all his equipment in situ when he came back from golf.
Seriously, this is not ok.