The great thing is that you don't have to join any community. Python is my favorite language and ever since I got flamed for asking a technical question in their subreddit I stopped going there.
There are hardly any non-toxic programming communities out there. And if you value backward compatibility over everything else you can look at C and C++.
Java also has a pretty good compatibility story. I still use python for some applications, but it has created a lot of headaches, and also has the problem of being really slow. YMMV, but usually if you were to rewrite your c++ code in python, you would find that you need 10x as many servers (or likely more) to get the same performance.
Java community is strangely nice. Bog standard enterprise software developers are nearly always polite.
Only if you use CPython. I use PyPy3 most of the time and I get the same performance as Java and Go.
C++ is still faster than PyPy3, but not 10x faster. That is good enough for me to not deal with the messy C++ syntax.