This is the correct answer. The Fed rate is the main driver for these layoffs. The fed is trying to cause a slowdown in the economy (including layoffs) in order to temper inflation.
They are stuck on the horns of a dilemma they created 10 years ago with 10 years of sustained QE and ZIRP, which led to the asset bubble we now see deflating.
Also agree it's largely due to QE! I think the only thing I find weird enough to pause and think "huh, that's weird" is the timing. Labor gets market power and oh wow, we better fight inflation.
Maybe it just all happened at the same time and COVID caused it to bubble over. Just seems weird timing to me.
The real economy is not doing well globally, inflation is a serious problem, and the impact of the rate hikes will take about 10 months to show up (so should hit this year).