I had only used kde once before like 7 years ago and I wasn't a huge fan. I wanted to try it again and I honestly really like it over gnome. I usually go tiling but felt lazy with a new laptop. The trackpad gestures are really solid.
So I want and have ip forwarding, and I only want to make a firewall whitelist between two of the interfaces.
I've uninstalled iptables, nftables isn't running, NM has the firewall backend disabled, and ip forwarding is on.
This should result in traffic moving between the interfaces, yet traffic is moving between two of the interfaces, and blocked between two of the interfaces. It just doesn't make sense.