Some tech is. Meanwhile large tech companies that are actually innovating (FAANG, near-FAANG, and FAANG-adjacent companies) are not. My comp has never been higher, and we're hiring. In the bay area.
These companies are always innovating. Google doesn't just say "Our ad recommendation system is good enough, lets just go into maintenence mode for a year." No. They constantly are trying to improve their models, switch to a better architecture, and innovate to try and eke out a few more percentage points of conversions.