> It's okay for you to have the opinions you do
Likewise.
> I know [...] C, C++, C#, Python, Go, various flavors of Assembly
That's good. But these are all languages that either lack strong typing and or are themselves rather quirky.
Only C# and Go stand out, IMHO, as languages that are recently designed. Even Python did not have user defined classes in the first versions, and some things thus feel off (__len__, __init__, etc.).
Also C# and Go still have implicit nulls all over the place. Their designs show ignorance for modern language design. Sum-types, explicit null, immutability, sound type systems -- all lacking in all langs you mention.
So what languages do have these IMHO "Game changers"? OCaml/ReScript/ReasonML, Haskell, Elm, Rust, Gleam, F#, Scala, Kotlin, ...
Those languages really showed _me_ something important: how it could be better.
There is another group of languages that also sits on a unique place in the solution space: the LISPs (incl. Racket, Schemes and Clojure). I found it very worth while to learn to program with them as well.