Worst mistake ever :
Didn't care for changing environment while pip or apt, always did sudo for no reason.

One day installed Conda and unity. Didn't realise it changed everything to python3-gi. Everything fucked up.

Tried to fix by started removing Conda removed gnome*, lost GUI.

For first time worked on tty, after a 6 hour redbull session. Got back the system working.

First thing then done is learn to install in virtual and local environments.