Transporting millions of people dozens of miles twice a day OF COURSE has resource costs, in carbon and pollution and energy consumption. This shouldn’t be rocket science. Sadly it is for people who are afraid of change.
It also saves the workers money (as they don’t have to pay for fuel or public transit), it saves the company money (as they don’t have to pay for office space), it saves the environment (as you don’t have pollution from commutes), it reduces traffic (as you don’t have as many commuters at rush hour), and it’s generally good for just about everybody except commercial real estate developers renting out overpriced office buildings and Starbucks that’s paying absurd rents to be in the bottom floor of those overpriced office buildings. And of course middle managers who think that hounding their employees in person somehow accomplishes something.