You don't have to use them. There's a handful of nice to haves in modern releases but its totally fine and sane to just ignore whatever the committee is distracted by at the moment.

Hell, if you wait long enough, they'll just deprecate it before you can care to bother.

And that's the usual fallacy (just ignore the bad stuff).

But if you work with C++ in professional context, you will encounter it somewhere (library, teamate's PR, legacy code, LLM output, book / blog / conference ...). |

You actually need to know the bad stuff to be able to judge it and discard it.