Circuit breakers are not one time use like fuses. You can think of them as reusable fuses. An in device fuse only protects if the fault is in the device. If you were to put metal in the outlet, to stop current, you need a fuse in the outlet or somewhere else between the outlet and makns, which is what US has. Circuit breakers are typically 20A (or 15A) and multiple outlets are connected to the same circuit breaker.

They’re hanging out with the people who make off by one errors.

I’ve also not had great luck with MOTU devices (624, 8pre-es). Granted AFAIK, they’re still not supported in mainline kernel, but I found a few kernel modules on github. Those kernel modules work in that the audio interfaces are detected and I can play audio, but after a couple mins (sometimes immediately), it sounds like I’m getting buffer under runs even if I max out my buffers. If I disconnect and reconnect the devices it will sometimes work for another few mins. They work perfectly on windows. My preferred DAW is also windows only, but I can run a windows VM and do USB pass through on the either of the audio interfaces (other is connected via AVB), and it works great. So this is how I do audio, but this also means I’m using onboard audio for everything except the windows VM.