This means that, until recently, you couldn't use CSS Grid in React components, because every single CSS property that you want to pass through JSX needs to be explicitly whitelisted[1]. No other front-end framework has gone as far as React in trying to replace the vanilla web platform with its own technology and idioms.
[1] https://github.com/facebook/react/pull/9185
Angular's new template and component syntax have a learning curve. But they retain a far closer mapping to what's actually alive in the browser's DOM. A component instance actually wraps a native element, instead of being a function that emits a tree of objects that eventually get turned into DOM elements by some opaque virtual DOM process. When you grok what the syntax means, it's actually a rather elegant way of expressing binding to the HTML element properties and attributes and between component instances.
There are arguments for and against both approaches, but I don't see anyone on the React side of things even trying to understand them. Instead, they dismiss Angular's approach based on five minutes spent scanning syntax examples, and adopt a cult-like mindset that React is the silver-bullet for software development, and that alternative approaches are wrong and evil, and that anyone who uses them or likes them is stupid and/pr incompetent. It's a very arrogant and unpleasant attitude.