Can't open Unity 2017 LTS on Kubuntu 21.04

Hello, I’m trying to develop a unity 2017 lts project. How ever, the editor never opens. I see this error when launching from the terminal:
✗ ./Unity
./Unity: error while loading shared libraries: libgtk-x11-2.0.so.0: cannot open shared object file: N
o such file or directory

Fixed when installing :
apt-get install libgtk2.0-0

on Ubuntu-derivated systems