Job Interviews and technical tests...
Why when interviewing for full stack Angular(typescript ) / C# do they expect devs to be as good at C# as a 100% dedicated C# dev.

Why do they expect them to be as good as a 100% dedicated jQuery/pure javascript dev when 50% of the job is for Angular/typescript. WTF?

Full stack devs typically are constantly jumping around between tech stacks so they're always "working it out"

You hire a generalist because you want a generalist. Don't interview and test them like they're 2 specialists combined into 1.

What is it with UX designers who have no clue about what makes a good, usable, logical and efficient to develop and maintain UI that users will be happy to use?

The profession appeared out of nowhere a few years back and I have yet to meet a single one who has even basic sense of what makes good UX.