While I was adding Golang to the PATH my terminal (Konsole) suddenly stopped recognizing basic commands like nano and ls. I restared my PC and after logging back in (X11) KDE started throwing errors because it wasn’t able to find any program I tried to launch. Konsole is gone. I can’t open any program whatsoever (Firefox, Discover etc.). Trying to log in into Wayland just throws a black screen. After a few more reatarts I decided to use the terminal from the login screen, but it is broken as well. ls not found, nano and vim don’t exist. So far I can use pwd and cd.

What the hell is wrong here? Is it hardware failure (bad SSD)? Is there anything I can attempt to recover the system?