[bsder]

> All EDA (and more generally, all CAD) software seems weird to use and requires significant time to "get used to it".

It boils down to the fact that the number of users of these programs is small.

In a CAD program, there are enough features that some feature has exactly one, or worse, zero users.

This means that the most used features gets streamlined over time, but everything else remains "quirky".