choosing 2021 is itself a really odd cutoff date to choose. The really bizarre hiring happened between 2016 and 2021 https://i.redd.it/c94hnp9kvzy91.png

They had 17k employees in 2016 and 80k in 2022. And given that a lot of the big tech companies looked like this albeit not quite so extreme I think it's right to say they might all have a glut of employees.