> Is it because they don't need that much workers?

Yes and due to the market correcting as the market was highly inflated at the peak height of 2021 and fundamentally over hiring.

Clearly you don't need 7000+ people being paid $100K+ to run a company with revenues of $1B a quarter with mounting losses or living off and constantly raising VC money.

Pity for the people that hard worked for a degree in CS the last few years. I don't think they deserve it.

It's because of war. War destroys value.

A lot of tech companies still hire.