Twenty Nineteen, which launched with WordPress 5.0 and its block editor, is the worst-rated (3.5 stars) default theme in history. Twenty Twenty was a decent block-ready outing.

It's funny because personally, as a blogger, I find 2019 to be far better than both 2020 and 2021. I think where it fails is that it's not a generic theme that suits all use-cases which is (I guess) what most people rate.

So for me the question, is whether the default themes can be specialized or not.

The question about process is legitimate though.