For Linux:
Most computers allow you to set the default state directly in the BIOS before the OS even loads. Pros: Universal solution that overrides OS-level conflicts. Verdict
Fast forward 40 years. We now have dedicated arrow keys. But the hardware standard never fully died.
The "Num Lock on startup" feature is a for desktop users with full-sized keyboards. While Microsoft and various Linux distros could make the toggle more accessible in standard "Ease of Access" menus, the existing workarounds are reliable.
If you're having trouble finding the correct setting for your computer, you can try searching online for specific instructions related to your operating system and computer model.