100% a generation thing.
Been around long enough so I've written my own CSS framework, server-side framework, web browser, web server, sent bits over Ethernet, written assembler, programmed a FPGA, built circuits, AND have a electrical engineering degree... and YET, _ABSOLUTELY NONE_ of this is useful _99%_ of the time.
So meh. If I want you to do frontend, I will ask you frontend questions. Hopefully you can go deep on a11y and that's what I care about.
(But the 1% of the time when I can precisely step through a whole stack is also fun.)