I cannot confirm it for 100% since I cannot access /sys or run the sestatus command because that one is missing. But when I run ls -aliZ /etc/selinux I not only see old configs from 2009 (seems like all files are “from 2009”, so I guess I can ignore that) and no SELinux config file. But also some missing context labels? Missing context labels usually means those files were created with SELinux off. A relabeling is then needed before turning SELinux on again.
But before I’ll jump to conclusions I would like to double check if this phone really has no SELinux. That would be a bummer. Does anyone have a rooted FP running the stock ROM? If so, please show the contents of /sys/fs/selinux or the output of sestatus if you installed that one with e.g. Termux.