Line width confusion

Why is line width now defined in two separate places?
It should only be defined in the layers palette. right?

Print width has always been definable either by layer or per-object (overriding the layer setting). Now we have a third way, object linetypes also include a print width specification.

OK. So if I want to define by layer what should I set the object linetype to?

Select the object and in it’s Linetype setting, make sure it is “By Layer”:
Screenshot 2024-05-23 at 6.47.36 AM