FreeBSD is an operating system which focuses on features, speed, and stability.
It is the 'other' (non-hugging) opensource operating system you may have heard about while being a Linux user watching popular YouTubers
The “non hugging” thing is wrong btw, FreeBSD folks just want consent first (not a bad thing), the community is pretty good and generally less toxic than that of some Linux distro's
FreeBSD is different to Linux based operating systems as it's base is a combined kernel and userland developer by a core team, whereas Linux is a Kernel developed separately from and requires a userlannd (normally GNU, but others are used)
If you are having to type in your password multiplke times after logging into KDE-Plasma try this
If you use SyncThing and KDE Connect and want to use a Firewall on FreeBSD try what I did here