On systems with limited resources, or that just do not want the cient to start automatically, here are the steps.
Stop client from auto-starting in both admin and user account:
sudo mv /home/user/.config/autostart/evc.desktop /home/user/.config/autostart/evc.desktop.bak && sudo mv /home/admin/.config/autostart/evc.desktop /home/admin/.config/autostart/evc.desktop.bak
Stop client from auto-starting in both admin and user account seperately:
Admin:
sudo mv /home/user/.config/autostart/evc.desktop /home/user/.config/autostart/evc.desktop.bak
User:
sudo mv /home/admin/.config/autostart/evc.desktop /home/admin/.config/autostart/evc.desktop.bak
Reversal:
sudo mv /home/user/.config/autostart/evc.desktop.bak /home/user/.config/autostart/evc.desktop && sudo mv /home/admin/.config/autostart/evc.desktop.bak /home/admin/.config/autostart/evc.desktop