Best practises have changed dramatically in React since 2014 though. It’s easy to say “oh you don’t have to use hooks, you can keep using class components” but that’s not really true when the entire ecosystem is pivoting.
My bigger problem with React is that it ends up being used as a form of vendor lock in. Once your entire page is in the React VDOM it’s very, very difficult to pivot to a different framework piece by piece. That’s a core strength of web components.
I think React originally started with the opposite intent: a library where you can mount a component onto selected elements of the web page. The lock in only happened when React was used to develop SPAs, which effectively meant that React takes over the document root. With that came state management, and frameworks that managed the complexity of state were not far behind.
React state management has changed a lot.
React DOM/views have not significantly changed in 12 years.
Our 10 year React projects that used mobx have not changed very much.
Savage take: I found React when it came out and I thought “wow you made this gorgeous DOM library and then you bolted on this messy ugly wart for state.” Then hooks came out and I’m like… this is a good electrician pretending they can also do plumbing.
it's also impossible to look at the DOM and figure out what the hell is going on with React.
Class components still work, and you can still use function components with hooks inside class components and vice versa.
In the parent comment's case of not having other dependencies, whatever the React ecosystem does isn't relevant if you aren't using any React libraries, which aren't really necessary anyways, especially nowadays when the LLM can reimplement what you need for you.
Nothing has changed about react-dom that prevents you from using React piece by piece—its docs still recommend attaching to a #root node even for single page apps.
Including web components in a React app is very seamless, and embedding non-React-controlled elements inside React is not uncommon (e.g. canvas, Monaco, maps), though for common use cases there's usually convenience libraries for React that wrap around these.