This is awesome.

Question for frontend folks: are you expected to master what to me seems like this endless list of frameworks (js,css and server side), to succeed in your career? Is it accurate to say that entering the field is harder today than it has ever been as a result of framework fragmentation?

No one is expecting you to learn the new framework. Interest is the main driver for learning anything new, just like anyone.

Most front end devs, in my experience, want to optimize the developer experience, increase performance, and or reduce boilerplate, so the new fancy framework might show promise in doing said things, and that’s what makes you want that framework to do well.

If a job requires a new framework, it’s likely that the CTO or senior devs of that company believe the above.

These days, it's either Vue, React or Angular. The new frameworks just keep us excited about new tech popping up left and right.

Svelte (or Qwik or Solid.js) for example, I personally wouldn't use it in production but it's still nice to learn because it helps me know more about React alternatives.

React seems mostly popular in hip companies (flexibility to choose the newest stuff), while Angular is more popular in "enterprise" (lots of mid-sized companies in Europe, the same that would also use .NET, valuing the stability of a batteries-included framework).

I'm not sure which type of company uses Vue. Maybe smaller agencies with the option to choose more freely?

Vue is more popular in SMEs than .NET, I believe.

Vue is also huge in China. Euronet is a big multi-national standardizing on Vue 3 w/the Composition API for all foreseeable frontends.

It's a bit like asking another programmer whether you have to learn every programming language to succeed. Nope and which you should use depends on what you want to do.

This is nice assuming you also have a BE that is equally matched.

Remix run, for me, bring the FE and BE together with the same simplicity.

100% this