As someone proficient with R and Python, anything data viz-wise is substantially easier to do in R/ggplot2, particularly something complicated like this post.
Most of the R packages in this post aren't that new either.
My same experience, I have built fairly big projects with Python and I like it for general tasks but whenever I have something data analytics/visualization related I find myself reaching for R. There is so much functionality built into the language that just makes me so efficient.
I agree with that. I've been programming on and off in Python since 2008 and really like the language. I started using R just over a year ago after joining a new team. It took a while to adjust but I've gotten to prefer it for exploratory data analysis and data viz.
Python for everything, but if I need to make something nice to look at, R makes my life so much easier, and the final touch in Affinity Designer/Photo.
In jupyter it's trivial to mix and match python and R anyway, all the wrangling in python and once it's clean, just basic tidyverse in R
Most of the R packages in this post aren't that new either.