Earlier quoted context omitted.
I can assure you that a much larger cohort of employees are vastly more effective. No commute alone is a MASSIVE gain.
I can assure you all these "assurances" are just based off personal preferences and anecdotal stories. There are pros and cons with office work and WFH, and some people prefer one over the other. A full remote arrangement isn't for everyone, despite how the overwhelming number of introverts on HackerNews paint it as the objectively the best way going forward for all companies.
My point is this: If you have to be effective working remotely you will be effective working remotely.