This is a partial example of worse-is-better. No one wants to have 10 languages in their toolbelt.
I personally find I use C# for almost everything. You can find good libraries for virtually everything you need. And it has the best tooling I've found. Is it actually the best language for everything? Absolutely not, but its close enough that I'm probably the most productive in virtually everything with it.
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This is a partial example of worse-is-better. No one wants to have 10 languages in their toolbelt.
I personally find I use C# for almost everything. You can find good libraries for virtually everything you need. And it has the best tooling I've found. Is it actually the best language for everything? Absolutely not, but its close enough that I'm probably the most productive in virtually everything with it.