As far as the catch can goes, it is total opinion. Basically the filter in the can catches any oil/contaminants that come through the PCV system that would normally be carried through the intake. One side says that stuff gunks up the intake valves over time, the other says the system is engineered to burn it off. As an engine builder/exotic and performance car dealership owner, I can tell you that unless you were a Stellantis engineer who designed the system, you don't know the truth on that either way. Period. Speculation is fun but it isn't fact. I don't personally believe they are needed, but I run one just because I don't mind the extra maintenance.
As for the "I register my stuff in a state I don't live in", that's great and good on you. It's also illegal and a tax loophole that will one day close around your neck and you'll be telling yourself it wasn't worth it. But please don't believe me or take my word for it. Some lessons are best learned the hard way.