Its mostly just increased reporting. Tech companies overhired when when they were doing well during lockdowns and are laying people off now that the increased revenue didn't hold indefinitely.
https://layoffs.fyi/ has been tracking layoffs in the tech sector since covid and the charts show how much more layoffs there were in 2023 (particularly January and February). It seems like the biggest change is that now every time there is a layoff it gets more news coverage.
There have been a few videos by hardware reviewers to address the sample size concern. Gamers Nexus tested 3 different CPU models with 20+ CPUs each and found that the biggest variance from lowest to highest performance was under 4% while performance variance in most cases was about 2%
https://www.youtube.com/watch?v=PUeZQ3pky-w
The way CPU manufacturing and binning are done means that cpus in particular will have very minor differences within the same model number.