I have 5 teams, with 4-6 devs/SA, my data says we are actually getting 23% more done the last year, due to WFH, comparing with the previous 2 years.
The 23% is the total, some teams have a higher increase due to the “best” teams have not increased with much. The “less better” have a higher increase.
My case, WFH gave me the opportunity to hand out bonuses over the normal bonus and some team members feel less stressed and have time to exercise.