1 day later, and with the help of #toolbx and #ansible, Quartus is now installed in a Ubuntu container separated from the OS to avoid breakage.
I would like to thank @geerlingguy 's "Ansible for Devops" for explaining me how to use Ansible playbooks and @redhat / @fedora for their docs on both previously mentioned tools + some help I got from their community (currently waiting for help regarding that damn .desktop file), it really allowed me to quickly create some thing that just works(tm).