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I had been working remotely for 8 years and really was 100% for it and advocating it. I recently joined a new job where I'm at the office 3 days a week, and I can definitely feel the difference both in the time it took me to onboard (compared to other remote-only onboarding I did) and the productivity / relationships / other gains from those days we are all in the office.
Those ad-hoc conversation happening around a desk, a white board, at lunch, do bring a lot of value that you never get while WFH. I can definitely see how some of my previous burn outs may have been prevented if I was not 100% remote.
Of course YMMV, but personally I can definitely see how a company may decide to get back to the office and it's definitely not all black and white where remote is better and omg the mean bosses are getting butts back in seats for more control.
https://www.cs.virginia.edu/~robins/YouAndYourResearch.html
"Knowledge and productivity are like compound interest. Given two people of approximately the same ability and one person who works ten percent more than the other, the latter will more than twice outproduce the former. The more you know, the more you learn; the more you learn, the more you can do; the more you can do, the more the opportunity - it is very much like compound interest."
The payoff of working more is not linear.