What configuration is there? You're either NATing or you're not. There's no "good". It's on or off. What situations have you been in where you weren't NATing between LAN and WAN?
Does VPN subnet translation count as NAT? Because I've definitely seen some footguns come from that.... I've also seen instances where poorly configured NATs ended up allowing victims to be used as proxies. So I'd say there are definite security questions to take into account.
Oh my that's so cute... not everything runs on a home router. lmao
I'm not talking about home routers. I'm taking about NAT, which I can tell you don't understand. Toodles.
Confidently incorrect, see my other comment for some examples.
Give me an example of a parameter you need to configure for NAT.