> insane techstack involving C#, Razor Pages, MSSQL

Is a very sane tech stack, you're just biased against Microsoft.

Half the world's enterprise apps run on that combination, or a minor variation of it.

Like Java it is full featured ("batteries included") but unlike Java it is relatively terse and actually pleasant to work with.

Oh, and unlike Python, it is very fast, within spitting distance of compiled Rust and C++ web apps.