I feel proponents of any programming language put a lot of spin around what isolated aspects it is good for, but fail to illustrate what a programmer in even one target domain gains from using it.
Are there programming language implementations unlike what is described above, that you feel back up their marketing?


Dunno. If it fits the purpose and you get a lot of libraries and tooling around your specific domain… Why not make use of it? Python is easy to learn and has a lot of nice stuff for data science. Or R for statistics… Considering the absence of other complete frameworks when doing embedded programming… wouldn’t you just use C++?
Maybe I don’t the question. Programming languages are never perfect. Nor good for one specific and confined task… They all grew, picked up quirks. Or inherited burdens. People are trying to do 5 million different things with them at the same time… I think I’m more concerned with their usefulness and actual application, than their marketing material.
And some of the stuff they did in the 50s, 70s, 80s and 90s, when these programming languages were designed, is just a bit weird by today’s standards.
Embedded is probably C.
You are right Python and C++ have a huge amount of collateral available going for them. But is the utility of their language features backed up by any examples or explanations? Rigid object-orientedness as seen in Python, C++, Java, modern Javascript is not conducive to good software in practice, and we are just muddling along.
Object-oriented is a design pattern that the language can facilitate. Just because a language supports “is a” doesn’t mean “has a” does not exist. There are a lot of design patterns. Use the best language and design patterns for your team.