Why working from home has been great for companies?

We are slowly going back to a normal society with the COVID-19 case decreasing. This has meant that companies will call their employees back in.
It has been reported by researches that working from home has reaped favourable results for most companies.
But some people just prefer leaving the house for work and separating the two environments.
Take a listen here as they share what the pandemic has mean for work culture