WELL SUPPORTED???? Have you ever coded a real thing in python?
I'm getting "Warning, no longer supported" console messages in all my basic well established tools and libraries written in python because a guy that lives in a world of academics and theory and not in a world of business and delivery dates decided that python3 was not going to have backwards compatibility with python2 because they made a massive irreparable disaster when they designed python2.
That is not a professional tool for multi-million dollar companies, that is a toy for spoiled nerds. Exactly the same that Visual Basic 5-6 were when I was starting. Extremely easy to use and extremely fast, at the price of been garbage for anything larger than a toy app.
And because all the kids learned that at uni and went to create the next thing in it like PyTorch and TensorFlow, now you have to do all the real code in C / C++ to handle what python can't in terms of speed an reliability, doubling you code base, your Dev teams, and the needed skill set.
I have been programing in java in large multinationals for 10 years and I used python every single day for the past 3 years for what its useful: small hacky scripts to increase productivity. The real sh*t that manages you cellphone towers, you home-banking, you online shopping, your logistic chain and your android cellphone apps, all things that I have worked on, gets done in Java.