This. I really only bother touching languages with good to great IDE experiences which is why I basically concentrated on JVM tech for most of my career. The good news is that the tools story is improving across all languages these days.
Not really practically but yes in theory? The JVM is host to many languages with different paradigms and it is not like I don't futz around with other stuff. I refuse to write serious code in poorly tooled languages and at this point in my career there are also some areas of exploration I just don't care about (e.g. machine level programming with ASM or C/C++ and web dev with JavaScript).
