It is kind of ridiculous to link working from home to working alone, specially after the braindead strategy that was applied by politics on COVID, like forbidding going out in controlled groups, like you could do in Japan during COVID without problems.
Going out for a walk alone to the beach or the mountains was forbidden. It was so ridiculous. And of course I went out anyway and it was essential for my health and sanity.
I have been working from home for a long time. It gives me freedom. I don't have to waste hours moving most of the time, and time with friends and family that I choose.
When I worked in an office I had to spend one hour moving in and one moving out each day.
This study is equivalent to the drugs study done on caged rats. The caged rats being humans during pandemic.
It was discovered later that if you let the rats freedom and the ability to socialise they did not get as anxious as when caged and they did not look for drugs for escaping their miserable lives.