The abstract doesn't say that isolation is negative (I think). It just says WFH folks are more socially isolated.
For some people, more social isolation is OK. For others, not so OK. YMMV .
I personally think that more socializing is better, if it's with people who I become better by being around. The tough part is knowing who's good for me, and how I can find them.
The abstract of the article says that folks who have remote work are more socially isolated, even after work hours.
Maybe WFH allows folks to be more social with the people they want, but the abstract says that they socialise less overall, and are more socially isolated.
Do you think it's like when driving with GPS first became a thing?
Everyone stopped learning the roads & streets of where they were driving, but it was OK to lose that knowledge.
GPS companies revised their products to adapt to driver mistakes, and today driving is generally better with Google Maps, even though sometimes it can be worse (no internet, or when a bug arises).
For some people, more social isolation is OK. For others, not so OK. YMMV .
I personally think that more socializing is better, if it's with people who I become better by being around. The tough part is knowing who's good for me, and how I can find them.