This is categorically false. CSS Grid and Flexbox do have overlap, but Grid complements Flexbox, and the two together get a LOT closer to the "holy grail" of pu

This is categorically false. CSS Grid and Flexbox do have overlap, but Grid complements Flexbox, and the two together get a LOT closer to the "holy grail" of purely semantic markup then either alone. That, in turn, has real benefits: the less "styling" nonsense is baked into your markup, the more powerful the ability to use CSS media queries and other tools to transform the presentation based on device and other contextual information (e.g. different embedding of the same content) FWIW, I've shipped "grid in Flexbox" sites. Flexbox was better than the-bad-old-days, but still kinda sucked, simply because of the hacks needed to make Flexbox approach grid layout.