The default location for .ips files in MacOS is:
~/Library/Logs/DiagnosticReports
You can just run the MacOS “Console.app” which will give you direct, human-readable access to all your crash reports, spin reports, logs, diags, etc:
This is an example of the Crash Reports hive, and (in my case) when the UA Cloud Helper crashes when you block unfettered Helper access to the internet, but you can ignore that.
You can just right click on the Crash Report instance and “Reveal in Finder” to go directly to the file itself. If you don’t see any, then the crashing process wasn’t identified by the OS as a “crash.”