system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can't you install Windows/Linux on a PS4 or Xbox?
gpt
Because Sony and Microsoft very strictly control what can run on these boxes. If they didn't then people could install their own applications and use it as a means of copying games or bypassing other protections. Consoles are supposed to be a safe place for developers to make their games and if piracy and cheating was that easy...

It is worth noting that back in the day you COULD install Linux on a PS3. Sony removed it after it was demonstrated how to break out of the virtual machine environment it was running in. (This in spite of the fact that doing so required attaching things to the motherboard and sending it an electrical jolt with millisecond precision)