Can you give me a link to that documenation and tooling? Because every time I go to troubleshoot an issue, I end up in a tangled mess of trying to figure out how systemd and NetworkManager have decided to configure themselves on this particular system, and I give up.

I don’t know how it happens, but I can set up Ubuntu on a dozen laptops in exactly the same way, and a week later they all have different configurations.

Even when DNS resolution isn’t working properly?

If your haven’t noticed much difference, there’s your answer.

A futex (short for fast user-space mutex) is a low-level kernel system call used in Linux (and some other operating systems) to implement synchronization primitives like mutexes, semaphores, and condition variables. It’s designed to minimize the need for expensive context switches between user and kernel space by handling most operations in user space with atomic operations.

Boot live media, mount the drive, copy it off.