A user has reported that DeploymentServerLauncher.exe will continue to poll for devices even if no iOS devices are connected. I am under the impression that this is so that Windows can poll for iOS devices, to allow for logging. The argument for this being a bug is the CPU usage and that it continues to run even if the user does not plan to do anything with iOS.
Regression?: Yes
This did not occur in 4.21.2
There's no existing public thread on this issue, so head over to Questions & Answers just mention UE-73418 in the post.