This would be good test for
@crossmoid as well (namely, to clone the disk to SATA SSD or to boot from a SATA SSD backup disk if one exists, and time the startup duration). To determine where those 36.97 seconds are going, can you please boot from the NVMe SSD and type the following in
Terminal:
Bash:
log show --last boot | head -2500 > ~/Documents/bootlog.txt
This will log the first 2500 lines into a file in
Documents folder called
bootlog.txt. Feel free to post the file or post just the subsection showing a pause (if there is one).