I just opened Activity Monitor - a process called "dasd" is the 5th largest consumer of CPU time. What does it do? Apple does not want you to know. Apple also will not let you disable it. Apple will not even tell you if this process is legitimate (it is signed by "Software Signing" lmao).
$ man dasd
No manual entry for dasd
There are like two dozen processes like this, half of which open network connections despite me never invoking any Apple services or even built-in apps. macOS has basically become malware.
Even excusing that daemon, here is a list of processes which have attempted to contact Apple in the past 24 hours, according to Little Snitch. I am certain this is not even a complete list, because macOS is closed source and likely can bypass application firewalls altogether:
Again, I have never used iCloud/Apple services, turned off all available telemetry options and did not open any Apple applications while all this took place (I only use Firefox and iTerm). Almost all of these processes lack a man page, or if they have one, it's one-line nonsense which explains nothing. This is beyond unprofessional.
The scheduling shouldn't be the 5th largest consumer of CPU. The question is what is it scheduling. Collecting data about user behavior would be a background task, you know..