[quote='791009022, Developer Tools Engineer, /thread/756986?answerId=791009022#791009022']
Do you know if you have any kind of anti-virus software running on your Mac or it’s a corporate image of some sort?
[/quote]
Yes, it's a corporate machine running CrowdStrike, which is also showing high memory and CPU usage during the process. This coincides with the diagnosticd process, likely due to the large amount of logs being generated when running the simulator or the SwiftUI preview.