If you could look into the investment portfolios of big companies and the rich people that run them you would see that the biggest sector is commercial real estate. In the UK pre pandemic, 40% of investments went into commercial real estate. So thats the main reason they are pushing it.
Yeah, this is BY FAR the biggest reason. Pretty much all the rich people and most big companies have huge investment in portfolios that contain a lot of commercial office spaces. If we were all allowed to work from home those investments would plummet and all the rich people and big companies would take MASSIVE losses on those investments. Which is why all the media and even companies like Zoom are trying to pull a 180 on working from home.