[Sangeppato]

I don't experience a delay in Terminal.app either, but I've tried running the script with a fresh install of iTerm2 while capturing with Wireshark and it does look like the script triggers a connection to an Apple server

[varenc]

I initially saw the delay in Terminal.app, but then it went away! I've made sure Terminal doesn't have the "Developers Tools" permission but the network request delay is still missing.

However, I was able to reproduce this by downloading a whole new terminal app, Alacritty. With the random script and file path I can always reproduce the delay in Alacritty. My guess is Terminal.app might have some special case behavior?

See my comment above on some shell script that does the random file name stuff for you.

[false_kermit]

I just ran the same script on iTerm2 and had no delay.

[Sangeppato]

I had no delay neither until I reinstalled iTerm2, I have no idea why

[chipotle_coyote]

Obviously I can't say that's impossible, it would just be... very weird, and would seem to contradict what Apple Developer Relations was saying on Apple's devrel forums as recently as this year.

[defnotashton2]

So its an actual fact documented that it happens. I agree that overall Mac os x still has a very nice ux and I'll never go back to windows.. But it's very clear apple is platforming their os to the degree they will ios. It's not weird it's happening, it's real life...