That was never true. The icon for "print" remains something you have to learn. Even the trash can icon had to be explained before it became "intuitive".
My chrome browser has a row of icons across the top. Only the <- and -> icons are reasonably intuitive.
You can’t make an “intuitive interface”. What you can make is an interface that is familiar, and consistent, which means people can reasonably anticipate what doing something they haven’t done before will do.
(Good interfaces should also allow for mistake recovery - eg by supporting universal undo - which is something everyone seems to have forgotten)
Even arrows are not uniformly perceived across cultures as showing direction (although you can safely assume most anyone who lives in 21st century globalized modern society will have learned to decode arrows fairly early in life).
The old quote goes that “the only intuitive interface is the nipple; after that it’s all learned” - but that quote was clearly by someone who was never around newborns, because lots of newborns have to be guided to breastfeeding.
I've also seen telephone icons that are an outline of a telephone that hasn't been seen since the 1950s. An outline of a modern phone isn't very distinctive.
Legend has it that the original Mac trash can icon looked a lot like a traditional British mailbox.
Non-hilarity ensued.