@cho It just works, even on extremely proprietary computers.

You will run into issues with GPU's and Wi-Fi cards that refuse to operate unless proprietary peripheral software is loaded up, but old nvidia and intel GPUs work fine (Linux-libre patches the radeonsi driver to not refuse to operate when the proprietary software is missing, so modesetting usually works with ATI and AMD GPUs, but performance is obviously poor and S3 ACPI suspend may not work), quality 802.11n Wi-Fi cards and all decent 1000BASE-T and 100BASE-TX NIC cards work just fine; https://h-node.org/