George, are you able to turn SIP back on after deleting the pre-installed apps? Or does that cause an issue with the OS not being seen as "complete"?With the apparent final releases for Mojave before Catalina, I updated one our macOS Sierra Mac Minis to Mojave, installed the latest updates, then disabled SIP and used AppDelete to remove most of Apple's pre-installed software. If you've not read my previous posts about doing that, the core operating system works fine, possibly better, without that overhead which we don't use on our work machines.
And have you tried this on a T2 equipped system? If so, what's your experience been like? Thanks.