Now that the paths for the complete Chromium package contents have been set up, try running the program for the first time:
You will see the following error message:
/usr/lib/chromium-browser/chromium-browser: error while loading shared libraries:
libatomic.so.1: cannot open shared object file: No such file or directory
This tells you that the program tries to load the shared library libatomic.so.1, but can't find it.
You will need to obtain libatomic.so.1 and install it.