This article describes the real reason behind the push back to the office. It's about rich people gambling on real estate and now office buildings are empty.
These same people own newspapers and media channels which is why their crying voices are being pushed.
This is why people should be allowed to work from where they want. Of course it's not healthy to not meet other people for long times.
Some of my colleagues are single and they felt the same during covid, it was very difficult for them. But I had a family and didn't feel lonely at all. So situations vary a lot.