Absolutely awful take. Basically every interview will have some section asking about styling.
Never had an interview question about styling before - but some places ask you about inverting binary trees than never have you do anything that involves inverting a binary tree, so that wouldn't tell me much.
I have dabbled periodically in modern front end development, but it depresses me hugely. All the mistakes that gave us PHP dominating back ends (another sad story) being repeated in a modern context.
Learn CSS? I did. Feel like I wore out MDN but I agree it is awesome. An adequate solution to a very difficult problem.