Among Open Core developers last April, around the time first Monterey betas, a bug was reported that Apple's NVMe driver exposes a problem in the way Samsung implements Trim that leads to long stalls during boot. At that time it was a noted concern this would eventually come to a head. There was uncertainty about the nature of the bug and it is still open at Dortania github. It might be that Monterey has crossed the Rubicon, so to speak. I am not connected to that scene and have no expertise in the specific bug. What got my attention was that some NVMe drives are known to croak due to the way Apple's NVMe driver exercises the controller... A problem that was wrecking my life last spring as I was putting together an z590 iMac clone. This is discussed as part of the Anti-Hackintosh Buyers Guide. The trait in common for mortal failure is Phison controller. The problem with Samsung is not known to be fatal, but causes Trim stalls. I posted the details over at General Hardware Discussion "General NVMe Problems"