Apple's apps bypass firewalls like LittleSnitch and LuLu on macOS Big Sur

Apple seems to do all kinds of weird networking _stuff_. For instance, during wakeup, your T2 equipped Macbook will wait for a DNS response and then use said DNS response to synchronize time via NTP before letting the user use the keyboard. Probably checking timestamps on signatures for the keyboard firmware, or something stupid like that. This only happens if it happens to have a default route.

Similarly, all macOS machines will test a DHCP supplied default route before applying it by trying to reach something on the internet. So if you happen to have some firewall rules that block internet access, no default route will be applied until the internet check times out.

I won't share the other sentiments about the above, but is it really that hard to document these behaviors?

Apple touted the T2 chip as the bee's knees in security. Now, we have a vulnerability that cannot be defended against. However, Apple went all in on the security of this T2 chip so that you cannot replace the SSD (besides the method to manufacture). I appreciate the desire at making a device difficult for a bad actor to get to your data, but they epicly failed and ultimately only made an user-hostile device. Oh, and the laptops with these chips also had the world's worst keyboard. Absolute trash.