Jokes aside, you ask in different ways, including different languages, and the more you test the more certain you are that it is correct. The only way to be 100% certain is to get the developers to tell you.
I tried making a realtime multiplayer game network based on HTTP, sending movement data every 100ms and individual world changes on each HTTP requests by that was taking 50ms each on a wifi local network, I thought that was good enough but then I tested websockets and the round-trip for websocket was around 4ms.
Sure, to me a library is something you call, like ReactDOM.render(), React.useState(), etc, and a framework calls the code you create. You create files and modules for a framework in the way that it dictates, and a library doesn't constrict you in any way.
But defining react as a framework or a library isn't easy, the word "React" isn't just one thing. JSX, initializing script, and the app skeleton are all optional to using React, yet React without JSX doesn't exist, everyone does it, like bundling your web app is a must in production nowadays.
React wasn't so much a framework when it started, you could add pieces of react in different parts of your page, to the point people sometimes argued that it was overkill to have the entire page be a react app. It is slowly walking into the framework direction, and the new react.dev docs violently suggest you use a react with a framework. A developer doesn't just "start" using react in these times, they need to understand a lot to create a full project with react.
I made an effort not to click on anything political for a few months and there's absolutely no video in neither side except for the "breaking news" section that youtube adds, not even on youtube shorts. We tend not to notice when things are right, but god damn how much I love youtube recomendation algorithm. I really hope it never corrupts itself. The "Do not recommend" works, and not just for the specific channel, but the overall category and related content, it's amazing.
Subreddits related to development and programming tried to create programming.dev, which is a federated alternative, but the registering is failing for some reason, possibly because of too many accounts being generated. Anyways aside from that it has good content.
If you use windows it will routinely set edge back to the default browser. The web team of microsoft is absolutely disgusting in every possible way, and it has always been.
Jokes aside, you ask in different ways, including different languages, and the more you test the more certain you are that it is correct. The only way to be 100% certain is to get the developers to tell you.