That's really the calculation people need to make.
At a large tech employer? How are they doing? Is what you're working on strategic? Do you seem to be valued or are you maybe a bit on the bubble?
Depending on the answers, it may make sense to stay put or it may make sense to find a life raft even if it isn't as cushy in some ways as where you are. And, as someone else noted, industries aren't homogeneous. Individual employers matter.
I wouldn't worry too much if I were at a similar company.
Getting laid off during Covid was a boon for many people
During dot-bomb, I got lucky and landed another (lower paying) job with someone I knew at a small company. But there were a lot of people who were out of work or underemployed for a long time. And some I knew on the older side never really recovered I think.