That’s power cycles of the disk firmware, isn’t it, not power cycles of macOS? I don’t know how things work, but guess it might decide to shut down when idle.

That’s power cycles of the disk firmware, isn’t it, not power cycles of macOS? I don’t know how things work, but guess it might decide to shut down when idle. It also could crash often, but if that’s the case, I guess you’d have seen data loss. If you run disk repair in Disk Utility, does it find problems with the SSD?