Flex is way simpler to use and reason about, it's sufficient for a majority of cases and it works on IE11, which is still supported until 2025. Grid is more po

Flex is way simpler to use and reason about, it's sufficient for a majority of cases and it works on IE11, which is still supported until 2025. Grid is more powerful, but not by a huge margin and not in every case. You can get very far with just flex, calc, media queries, and some inline variables and some other tricks. Also grid needs a more global view so to speak and up-front design as opposed to the component based thinking that has become so prevalent. I'm a fan of the feature but I don't think flex is becoming irrelevant anytime soon.