I've done a decent amount of non-trivial stuff using .NET Core MVC (not Razor Pages, which is apparently less "magic" to the uninitiated but I can't actually sp

I've done a decent amount of non-trivial stuff using .NET Core MVC (not Razor Pages, which is apparently less "magic" to the uninitiated but I can't actually speak to how it feels to use), with plain JS and CSS. That environment has libman, which allows you to download libraries in a very simple manner. I make JS "classes" with IIFEs and use Bootstrap for CSS. If you're not a complete slob it's not too bad. If you ever feel like you need minimizing and compatibility transpilation, that can be added after the fact.