Look I work from home, I think everyone who can (and wants to) work from home should work from home most of the time. But people are definitely less productive working from home, and I think the people who say that most people are more productive are delusional.
There are more important things than just raw productivity numbers, western workers have been working far too hard and far too long for the last half century, and I think we should return to a more humane approach to working.
Also froma purely selfish capitalist perspective I don’t neccesarily think the productivity boost of being in person is worth all the costs of a bigger office, cleaning staff etc.