Coming from FreeBSD and pf, all Linux firewalls I’ve tried feels clunky _at best_ UX-wise.
I’d love a Linux firewall configured with a sane config file and I think BSD really nailed it. It’s easy to configure and still human readable, even for more advanced firewall gateway setups with many interfaces/zones.
A have no doubt that Linux can do all the same stuff feature-wise, but oh god the UX :/